What is CVE-2021-45261?

CVE-2021-45261 is a medium-severity vulnerability in Gnu Patch, classified under Release of Invalid Pointer or Reference. CVSS score: 5.5/10. Published 2021-12-22.

How severe is CVE-2021-45261?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-45261 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Gnu Patch

CVE-2021-45261

An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial of Service.

EPSS: 0.007 (48.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Gnu Patch — versions 2.7
N/a — versions n/a

Weakness classification (CWE)

CWE-763 — Release of Invalid Pointer or Reference

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-45261?: CVE-2021-45261 is a medium-severity vulnerability in Gnu Patch, classified under Release of Invalid Pointer or Reference. CVSS score: 5.5/10. Published 2021-12-22.
How severe is CVE-2021-45261?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-45261 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.