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CVE-2021-31872

Date: April 30, 2021

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.

Language: C

Severity Score

9.8

Related Resources (9)

Url: https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-31872

Url: https://kernel.org/pub/linux/libs/klibc/2.0/

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-31872

Url: http://www.openwall.com/lists/oss-security/2021/04/30/1

Url: https://security-tracker.debian.org/tracker/CVE-2021-31872

Url: https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html

Url: https://lists.zytor.com/archives/klibc/2021-April/004593.html

Url: https://www.mend.io/vulnerability-database/CVE-2021-31872

Severity Score

9.8

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

CVSS v3.1

Base Score:	9.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.5
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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