Vulnerability · Published Dec 22, 2021 · Assigned by mitre
CVE-2021-45261
Medium 5.5
In plain English
A medium-severity security flaw in the patch package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 55% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.8%top 44.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial of Service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | patch | no fix listed | DEBIAN-CVE-2021-45261 |
| Debian:13 | patch | no fix listed | DEBIAN-CVE-2021-45261 |
| Debian:14 | patch | no fix listed | DEBIAN-CVE-2021-45261 |
| Ubuntu:22.04:LTS | patch | no fix listed | UBUNTU-CVE-2021-45261 |
| Ubuntu:24.04:LTS | patch | no fix listed | UBUNTU-CVE-2021-45261 |
| Ubuntu:25.10 | patch | no fix listed | UBUNTU-CVE-2021-45261 |
| Ubuntu:26.04:LTS | patch | no fix listed | UBUNTU-CVE-2021-45261 |
| Ubuntu:26.10 | patch | no fix listed | UBUNTU-CVE-2021-45261 |
Affected products (as reported)
References
- https://savannah.gnu.org/bugs/?61685 x_refsource_MISC