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Lookup for vulnerable packages by Package URL.

Purlpkg:alpm/archlinux/apache@2.4.48-1
Typealpm
Namespacearchlinux
Nameapache
Version2.4.48-1
Qualifiers
Subpath
Is_vulnerabletrue
Next_non_vulnerable_version2.4.51-1
Latest_non_vulnerable_version2.4.55-1
Affected_by_vulnerabilities
0
url VCID-9u53-b79b-cfgd
vulnerability_id VCID-9u53-b79b-cfgd
summary 
Malformed requests may cause the server to dereference a NULL pointer.


This issue affects Apache HTTP Server 2.4.48 and earlier.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34798.json
reference_id
reference_type
scores
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value 7.5
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34798.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-34798
reference_id
reference_type
scores
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value 0.1029
scoring_system epss
scoring_elements 0.93141
published_at 2026-04-01T12:55:00Z
1
value 0.1029
scoring_system epss
scoring_elements 0.93201
published_at 2026-04-29T12:55:00Z
2
value 0.1029
scoring_system epss
scoring_elements 0.932
published_at 2026-04-21T12:55:00Z
3
value 0.1029
scoring_system epss
scoring_elements 0.93205
published_at 2026-04-24T12:55:00Z
4
value 0.1029
scoring_system epss
scoring_elements 0.93204
published_at 2026-04-26T12:55:00Z
5
value 0.1029
scoring_system epss
scoring_elements 0.93151
published_at 2026-04-02T12:55:00Z
6
value 0.1029
scoring_system epss
scoring_elements 0.93154
published_at 2026-04-04T12:55:00Z
7
value 0.1029
scoring_system epss
scoring_elements 0.93153
published_at 2026-04-07T12:55:00Z
8
value 0.1029
scoring_system epss
scoring_elements 0.93162
published_at 2026-04-08T12:55:00Z
9
value 0.1029
scoring_system epss
scoring_elements 0.93166
published_at 2026-04-09T12:55:00Z
10
value 0.1029
scoring_system epss
scoring_elements 0.93172
published_at 2026-04-11T12:55:00Z
11
value 0.1029
scoring_system epss
scoring_elements 0.93169
published_at 2026-04-12T12:55:00Z
12
value 0.1029
scoring_system epss
scoring_elements 0.93171
published_at 2026-04-13T12:55:00Z
13
value 0.1029
scoring_system epss
scoring_elements 0.93187
published_at 2026-04-16T12:55:00Z
14
value 0.1029
scoring_system epss
scoring_elements 0.93191
published_at 2026-04-18T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-34798
2
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798
reference_id
reference_type
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160
reference_id
reference_type
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url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275
reference_id
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438
reference_id
reference_type
scores
url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438
6
reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
scores
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value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
7
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2005128
reference_id 2005128
reference_type
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url https://bugzilla.redhat.com/show_bug.cgi?id=2005128
8
reference_url https://security.archlinux.org/AVG-2289
reference_id AVG-2289
reference_type
scores
0
value High
scoring_system archlinux
scoring_elements
url https://security.archlinux.org/AVG-2289
9
reference_url https://httpd.apache.org/security/json/CVE-2021-34798.json
reference_id CVE-2021-34798
reference_type
scores
0
value moderate
scoring_system apache_httpd
scoring_elements
url https://httpd.apache.org/security/json/CVE-2021-34798.json
10
reference_url https://security.gentoo.org/glsa/202208-20
reference_id GLSA-202208-20
reference_type
scores
url https://security.gentoo.org/glsa/202208-20
11
reference_url https://access.redhat.com/errata/RHSA-2021:4613
reference_id RHSA-2021:4613
reference_type
scores
url https://access.redhat.com/errata/RHSA-2021:4613
12
reference_url https://access.redhat.com/errata/RHSA-2021:4614
reference_id RHSA-2021:4614
reference_type
scores
url https://access.redhat.com/errata/RHSA-2021:4614
13
reference_url https://access.redhat.com/errata/RHSA-2022:0143
reference_id RHSA-2022:0143
reference_type
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url https://access.redhat.com/errata/RHSA-2022:0143
14
reference_url https://access.redhat.com/errata/RHSA-2022:0891
reference_id RHSA-2022:0891
reference_type
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url https://access.redhat.com/errata/RHSA-2022:0891
15
reference_url https://access.redhat.com/errata/RHSA-2022:6753
reference_id RHSA-2022:6753
reference_type
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url https://access.redhat.com/errata/RHSA-2022:6753
16
reference_url https://usn.ubuntu.com/5090-1/
reference_id USN-5090-1
reference_type
scores
url https://usn.ubuntu.com/5090-1/
17
reference_url https://usn.ubuntu.com/5090-2/
reference_id USN-5090-2
reference_type
scores
url https://usn.ubuntu.com/5090-2/
fixed_packages
0
url pkg:alpm/archlinux/apache@2.4.49-1
purl pkg:alpm/archlinux/apache@2.4.49-1
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-ffpe-1ctd-77e9
1
vulnerability VCID-hj5r-jms3-x3fe
resource_url http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1
aliases CVE-2021-34798
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-9u53-b79b-cfgd
1
url VCID-db6k-j9mj-e7hy
vulnerability_id VCID-db6k-j9mj-e7hy
summary 
A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning.

This issue affects Apache HTTP Server 2.4.17 to 2.4.48.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33193.json
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33193.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-33193
reference_id
reference_type
scores
0
value 0.00569
scoring_system epss
scoring_elements 0.68634
published_at 2026-04-26T12:55:00Z
1
value 0.00569
scoring_system epss
scoring_elements 0.68629
published_at 2026-04-24T12:55:00Z
2
value 0.00569
scoring_system epss
scoring_elements 0.6858
published_at 2026-04-21T12:55:00Z
3
value 0.00609
scoring_system epss
scoring_elements 0.69818
published_at 2026-04-29T12:55:00Z
4
value 0.00739
scoring_system epss
scoring_elements 0.72879
published_at 2026-04-08T12:55:00Z
5
value 0.00739
scoring_system epss
scoring_elements 0.72917
published_at 2026-04-11T12:55:00Z
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value 0.00739
scoring_system epss
scoring_elements 0.729
published_at 2026-04-12T12:55:00Z
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value 0.00739
scoring_system epss
scoring_elements 0.72934
published_at 2026-04-16T12:55:00Z
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value 0.00739
scoring_system epss
scoring_elements 0.72943
published_at 2026-04-18T12:55:00Z
9
value 0.00739
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published_at 2026-04-13T12:55:00Z
10
value 0.00739
scoring_system epss
scoring_elements 0.72839
published_at 2026-04-01T12:55:00Z
11
value 0.00739
scoring_system epss
scoring_elements 0.72846
published_at 2026-04-02T12:55:00Z
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scoring_system epss
scoring_elements 0.72866
published_at 2026-04-04T12:55:00Z
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scoring_system epss
scoring_elements 0.72841
published_at 2026-04-07T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-33193
2
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33193
reference_id
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url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33193
3
reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
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scores
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value 9.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
4
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=1966728
reference_id 1966728
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=1966728
5
reference_url https://security.archlinux.org/AVG-2289
reference_id AVG-2289
reference_type
scores
0
value High
scoring_system archlinux
scoring_elements
url https://security.archlinux.org/AVG-2289
6
reference_url https://httpd.apache.org/security/json/CVE-2021-33193.json
reference_id CVE-2021-33193
reference_type
scores
0
value moderate
scoring_system apache_httpd
scoring_elements
url https://httpd.apache.org/security/json/CVE-2021-33193.json
7
reference_url https://security.gentoo.org/glsa/202208-20
reference_id GLSA-202208-20
reference_type
scores
url https://security.gentoo.org/glsa/202208-20
8
reference_url https://access.redhat.com/errata/RHSA-2022:1915
reference_id RHSA-2022:1915
reference_type
scores
url https://access.redhat.com/errata/RHSA-2022:1915
9
reference_url https://access.redhat.com/errata/RHSA-2022:6753
reference_id RHSA-2022:6753
reference_type
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url https://access.redhat.com/errata/RHSA-2022:6753
10
reference_url https://access.redhat.com/errata/RHSA-2022:7143
reference_id RHSA-2022:7143
reference_type
scores
url https://access.redhat.com/errata/RHSA-2022:7143
11
reference_url https://access.redhat.com/errata/RHSA-2022:7144
reference_id RHSA-2022:7144
reference_type
scores
url https://access.redhat.com/errata/RHSA-2022:7144
12
reference_url https://usn.ubuntu.com/5090-1/
reference_id USN-5090-1
reference_type
scores
url https://usn.ubuntu.com/5090-1/
fixed_packages
0
url pkg:alpm/archlinux/apache@2.4.49-1
purl pkg:alpm/archlinux/apache@2.4.49-1
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-ffpe-1ctd-77e9
1
vulnerability VCID-hj5r-jms3-x3fe
resource_url http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1
aliases CVE-2021-33193
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-db6k-j9mj-e7hy
2
url VCID-mtg7-8556-kbgd
vulnerability_id VCID-mtg7-8556-kbgd
summary 
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user.

This issue affects Apache HTTP Server 2.4.48 and earlier.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-40438.json
reference_id
reference_type
scores
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value 9.0
scoring_system cvssv3
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url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-40438.json
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reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-40438
reference_id
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scoring_system epss
scoring_elements 0.99985
published_at 2026-04-18T12:55:00Z
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value 0.94432
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published_at 2026-04-29T12:55:00Z
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published_at 2026-04-21T12:55:00Z
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438
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reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
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scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2005117
reference_id 2005117
reference_type
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reference_url https://security.archlinux.org/AVG-2289
reference_id AVG-2289
reference_type
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value High
scoring_system archlinux
scoring_elements
url https://security.archlinux.org/AVG-2289
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reference_url https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
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reference_url https://www.debian.org/security/2021/dsa-4982
reference_id dsa-4982
reference_type
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reference_url https://security.gentoo.org/glsa/202208-20
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reference_url https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html
reference_id msg00001.html
reference_type
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reference_url https://security.netapp.com/advisory/ntap-20211008-0004/
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reference_type
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reference_url https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E
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1
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resource_url http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1
aliases CVE-2021-40438
risk_score 10.0
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url VCID-rdtq-8ng5-53fn
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summary 
A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and crash (DoS).

This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive).
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summary 
ap_escape_quotes() may write beyond the end of a buffer when given malicious input.  
No included modules pass untrusted data to these functions, but third-party / external modules may.

This issue affects Apache HTTP Server 2.4.48 and earlier.
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url VCID-6b7y-562y-suce
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summary 
Apache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. On violation of these restrictions and HTTP response is sent to the client with a status code indicating why the request was rejected.

This rejection response was not fully initialised in the HTTP/2 protocol handler if the offending header was the very first one received or appeared in a a footer. This led to a NULL pointer dereference on initialised memory, crashing reliably the child process. Since such a triggering HTTP/2 request is easy to craft and submit, this can be exploited to DoS the server.

This issue affected  mod_http2 1.15.17 and Apache HTTP Server version 2.4.47 only. Apache HTTP Server 2.4.47 was never released.
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scoring_system epss
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scoring_system epss
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published_at 2026-04-08T12:55:00Z
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scoring_system epss
scoring_elements 0.93392
published_at 2026-04-01T12:55:00Z
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value 0.11001
scoring_system epss
scoring_elements 0.93408
published_at 2026-04-07T12:55:00Z
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value 0.11001
scoring_system epss
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published_at 2026-04-24T12:55:00Z
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scoring_system epss
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value 0.11001
scoring_system epss
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scoring_system epss
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scoring_system epss
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scoring_system epss
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value 0.11001
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published_at 2026-04-09T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-31618
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35452
reference_id
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30641
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reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31618
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reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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reference_url https://bugzilla.redhat.com/show_bug.cgi?id=1968013
reference_id 1968013
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reference_url http://www.openwall.com/lists/oss-security/2024/03/13/2
reference_id 2
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scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-05-20T16:18:33Z/
url http://www.openwall.com/lists/oss-security/2024/03/13/2
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reference_url https://seclists.org/oss-sec/2021/q2/206
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url https://seclists.org/oss-sec/2021/q2/206
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reference_url https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2NKJ3ZA3FTSZ2QBBPKS6BYGAWYRABNQQ/
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reference_url http://www.openwall.com/lists/oss-security/2021/06/10/9
reference_id 9
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url http://www.openwall.com/lists/oss-security/2021/06/10/9
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reference_url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989562
reference_id 989562
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url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989562
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reference_url https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A73QJ4HPUMU26I6EULG6SCK67TUEXZYR/
reference_id A73QJ4HPUMU26I6EULG6SCK67TUEXZYR
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url https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A73QJ4HPUMU26I6EULG6SCK67TUEXZYR/
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reference_url https://security.archlinux.org/ASA-202106-23
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reference_url https://httpd.apache.org/security/json/CVE-2021-31618.json
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reference_url https://www.debian.org/security/2021/dsa-4937
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reference_url https://security.gentoo.org/glsa/202107-38
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reference_url https://security.netapp.com/advisory/ntap-20210727-0008/
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reference_url https://lists.apache.org/thread.html/r14b66ef0f4f569fd515a3f96cd4eb58bd9a8ff525cc326bb0359664f%40%3Ccvs.httpd.apache.org%3E
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reference_url https://lists.apache.org/thread.html/r783b6558abf3305b17ea462bed4bd66d82866438999bf38cef6d11d1%40%3Ccvs.httpd.apache.org%3E
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fixed_packages
0
url pkg:alpm/archlinux/apache@2.4.48-1
purl pkg:alpm/archlinux/apache@2.4.48-1
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-9u53-b79b-cfgd
1
vulnerability VCID-db6k-j9mj-e7hy
2
vulnerability VCID-mtg7-8556-kbgd
3
vulnerability VCID-rdtq-8ng5-53fn
4
vulnerability VCID-wrw6-uzz4-rkfb
resource_url http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.48-1
aliases CVE-2021-31618
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-6b7y-562y-suce
Risk_score10.0
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.48-1