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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

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 Third Party Advisory
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 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:klibc_project:klibc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2021-04-29 23:15

Updated : 2022-04-18 20:53

NVD link : CVE-2021-31873

Mitre link : CVE-2021-31873

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

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Products Affected

debian

debian_linux

klibc_project

klibc

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