Vulnerability Name:

CVE-2021-31872 (CCN-201072)

Assigned:2021-04-30
Published:2021-04-30
Updated:2022-04-19
Summary:An issue was discovered in klibc before 2.0.9. Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-190
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-31872

Source: MLIST
Type: Mailing List, Release Notes, Third Party Advisory
[oss-security] 20210430 [ANNOUNCE] klibc 2.0.9

Source: XF
Type: UNKNOWN
klibc-cve202131872-bo(201072)

Source: CCN
Type: klibc GIT Repository
klibc/klibc.git - klibc main development tree

Source: MISC
Type: Patch, Third Party Advisory
https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff

Source: MISC
Type: Release Notes, Third Party Advisory
https://kernel.org/pub/linux/libs/klibc/2.0/

Source: MLIST
Type: Third Party Advisory
[debian-lts-announce] 20210628 [SECURITY] [DLA 2695-1] klibc security update

Source: MISC
Type: Mailing List, Release Notes, Third Party Advisory
https://lists.zytor.com/archives/klibc/2021-April/004593.html

Source: CCN
Type: oss-sec Mailing List, Fri, 30 Apr 2021 01:47:34 +0200
[ANNOUNCE] klibc 2.0.9

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-31872

Vulnerable Configuration:Configuration 1:
  • cpe:/a:klibc_project:klibc:*:*:*:*:*:x86:*:* (Version < 2.0.9)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    klibc_project klibc *
    debian debian linux 9.0