CVE Vulnerability

CVE-2021-31873

An issue was discovered in klibc before 2.0.9. Additions in the malloc() function may result in an integer overflow and a subsequent heap buffer overflow.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://kernel.org/pub/linux/libs/klibc/2.0/ Release Notes Third Party Advisory
https://lists.zytor.com/archives/klibc/2021-April/004593.html Mailing List Release Notes
https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=a31ae8c508fc8d1bca4f57e9f9f88127572d5202 Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/04/30/1 Mailing List Release Notes
https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:klibc_project:klibc:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2021-04-30 06:15

Updated : 2022-04-19 03:53

NVD link : CVE-2021-31873

Mitre link : CVE-2021-31873

Products Affected
No products.
CWE
CWE-190