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Vulnerability details: VCID-sab9-b6yn-aaaj
Vulnerability ID VCID-sab9-b6yn-aaaj
Aliases CVE-2021-1252
Summary A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition.
Status Published
Exploitability 0.5
Weighted Severity 7.0
Risk 3.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-20 Improper Input Validation
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-1252.html
epss 0.00179 https://api.first.org/data/v1/epss?cve=CVE-2021-1252
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epss 0.02137 https://api.first.org/data/v1/epss?cve=CVE-2021-1252
cvssv3.1 7.5 https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html
generic_textual Medium https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html
ssvc Track https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1252
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.8 https://nvd.nist.gov/vuln/detail/CVE-2021-1252
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-1252
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-1252
archlinux Low https://security.archlinux.org/AVG-1787
generic_textual Medium https://ubuntu.com/security/notices/USN-4918-1
generic_textual Medium https://ubuntu.com/security/notices/USN-4918-2
generic_textual Medium https://ubuntu.com/security/notices/USN-4918-3
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-1252.html
https://api.first.org/data/v1/epss?cve=CVE-2021-1252
https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1252
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://ubuntu.com/security/notices/USN-4918-1
https://ubuntu.com/security/notices/USN-4918-2
https://ubuntu.com/security/notices/USN-4918-3
986622 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=986622
AVG-1787 https://security.archlinux.org/AVG-1787
cpe:2.3:a:clamav:clamav:0.103.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:clamav:clamav:0.103.0:*:*:*:*:*:*:*
cpe:2.3:a:clamav:clamav:0.103.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:clamav:clamav:0.103.1:*:*:*:*:*:*:*
CVE-2021-1252 https://nvd.nist.gov/vuln/detail/CVE-2021-1252
USN-4918-1 https://usn.ubuntu.com/4918-1/
USN-4918-2 https://usn.ubuntu.com/4918-2/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.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
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-08T20:02:36Z/ Found at https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:N/AC:L/Au:N/C:N/I:N/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2021-1252
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:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-1252
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:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-1252
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 0.55276
EPSS Score 0.00179
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.