CVE-2021-31872

moderate-risk
Published 2021-04-30

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.

Do I need to act?

~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Debian Klibc Project

References (10)

Mailing List http://www.openwall.com/lists/oss-security/2021/04/30/1
Patch https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e7...
Release Notes https://kernel.org/pub/linux/libs/klibc/2.0/
Third Party Advisory https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html
Mailing List https://lists.zytor.com/archives/klibc/2021-April/004593.html
Mailing List http://www.openwall.com/lists/oss-security/2021/04/30/1
Patch https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e7...
Release Notes https://kernel.org/pub/linux/libs/klibc/2.0/
Third Party Advisory https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html
Mailing List https://lists.zytor.com/archives/klibc/2021-April/004593.html
42
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 3/34 · Minimal
Exposure 7/34 · Low