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Vulnerability details: VCID-qz6b-x9ps-aaae
Vulnerability ID VCID-qz6b-x9ps-aaae
Aliases CVE-2020-35452
Summary Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow
Status Published
Exploitability 0.5
Weighted Severity 6.6
Risk 3.3
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-787 Out-of-bounds Write
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
generic_textual Medium http://httpd.apache.org/security/vulnerabilities_24.html
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-35452.html
rhas Moderate https://access.redhat.com/errata/RHSA-2021:4613
rhas Moderate https://access.redhat.com/errata/RHSA-2021:4614
rhas Moderate https://access.redhat.com/errata/RHSA-2022:1915
cvssv3 7.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35452.json
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.00261 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.01040 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.01468 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.01468 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.01468 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.05482 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.05482 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.05482 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.0656 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
epss 0.45078 https://api.first.org/data/v1/epss?cve=CVE-2020-35452
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1966724
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35452
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26690
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26691
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30641
cvssv3.1 8.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd low https://httpd.apache.org/security/json/CVE-2020-35452.json
generic_textual Low https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-35452
generic_textual Low https://lists.apache.org/thread.html/rccb1b8225583a48c6360edc7a93cc97ae8b0215791e455dc607e7602@%3Cannounce.httpd.apache.org%3E
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2020-35452
cvssv3 7.3 https://nvd.nist.gov/vuln/detail/CVE-2020-35452
cvssv3.1 7.3 https://nvd.nist.gov/vuln/detail/CVE-2020-35452
archlinux Medium https://security.archlinux.org/AVG-2053
generic_textual Medium https://ubuntu.com/security/notices/USN-4994-1
generic_textual Medium https://ubuntu.com/security/notices/USN-4994-2
cvssv3.1 8.2 https://www.oracle.com/security-alerts/cpuoct2021.html
generic_textual HIGH https://www.oracle.com/security-alerts/cpuoct2021.html
generic_textual Low http://www.openwall.com/lists/oss-security/2021/06/10/5
Reference id Reference type URL
http://httpd.apache.org/security/vulnerabilities_24.html
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-35452.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35452.json
https://api.first.org/data/v1/epss?cve=CVE-2020-35452
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35452
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26690
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26691
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30641
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31618
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-35452
https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd@%3Cdev.httpd.apache.org%3E
https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E
https://lists.apache.org/thread.html/rccb1b8225583a48c6360edc7a93cc97ae8b0215791e455dc607e7602@%3Cannounce.httpd.apache.org%3E
https://lists.apache.org/thread.html/rccb1b8225583a48c6360edc7a93cc97ae8b0215791e455dc607e7602%40%3Cannounce.httpd.apache.org%3E
https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
https://security.gentoo.org/glsa/202107-38
https://security.netapp.com/advisory/ntap-20210702-0001/
https://ubuntu.com/security/notices/USN-4994-1
https://ubuntu.com/security/notices/USN-4994-2
https://www.debian.org/security/2021/dsa-4937
https://www.oracle.com/security-alerts/cpuoct2021.html
http://www.openwall.com/lists/oss-security/2021/06/10/5
1966724 https://bugzilla.redhat.com/show_bug.cgi?id=1966724
AVG-2053 https://security.archlinux.org/AVG-2053
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
CVE-2020-35452 https://httpd.apache.org/security/json/CVE-2020-35452.json
CVE-2020-35452 https://nvd.nist.gov/vuln/detail/CVE-2020-35452
RHSA-2021:4613 https://access.redhat.com/errata/RHSA-2021:4613
RHSA-2021:4614 https://access.redhat.com/errata/RHSA-2021:4614
RHSA-2022:1915 https://access.redhat.com/errata/RHSA-2022:1915
USN-4994-1 https://usn.ubuntu.com/4994-1/
USN-4994-2 https://usn.ubuntu.com/4994-2/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35452.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35452
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35452
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35452
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N Found at https://www.oracle.com/security-alerts/cpuoct2021.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.66311
EPSS Score 0.00261
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.