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Vulnerability details: VCID-7pk9-skex-aaam
Vulnerability ID VCID-7pk9-skex-aaam
Aliases CVE-2021-42373
Summary A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-476 NULL Pointer Dereference
System Score Found at
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-42373.html
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-42373.json
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00045 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00046 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00046 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00046 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00046 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00046 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00049 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
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epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
epss 0.00083 https://api.first.org/data/v1/epss?cve=CVE-2021-42373
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=2023876
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42373
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
generic_textual Low https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/
cvssv2 2.1 https://nvd.nist.gov/vuln/detail/CVE-2021-42373
cvssv3 5.5 https://nvd.nist.gov/vuln/detail/CVE-2021-42373
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2021-42373
archlinux Medium https://security.archlinux.org/AVG-2561
archlinux Medium https://security.archlinux.org/AVG-2562
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-42373.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-42373.json
https://api.first.org/data/v1/epss?cve=CVE-2021-42373
https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42373
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
https://security.netapp.com/advisory/ntap-20211223-0002/
2023876 https://bugzilla.redhat.com/show_bug.cgi?id=2023876
999567 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=999567
AVG-2561 https://security.archlinux.org/AVG-2561
AVG-2562 https://security.archlinux.org/AVG-2562
cpe:2.3:a:busybox:busybox:1.33.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:busybox:busybox:1.33.0:*:*:*:*:*:*:*
cpe:2.3:a:busybox:busybox:1.33.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:busybox:busybox:1.33.1:*:*:*:*:*:*:*
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
CVE-2021-42373 https://nvd.nist.gov/vuln/detail/CVE-2021-42373
GLSA-202407-17 https://security.gentoo.org/glsa/202407-17
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-42373.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:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:L/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-42373
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:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-42373
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:L/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-42373
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 0.15160
EPSS Score 0.00045
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.