Patchelf out-of-bounds read

published 2022-12-19 3 y ago modified 2026-09-10 1 mo ago also GHSA-5pcj-3m26-w633 , PYSEC-2022-43144 , PYSEC-2022-43151 , EUVD-2022-0404

cvss: 9.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

Patchelf v0.9 was discovered to contain an out-of-bounds read via the function modifyRPath at src/patchelf.cc.

Patch / fix

fixed in 1 distros 1 links 1

pypi patchelf 0.16.1.0

patchelf Ubuntu Pro 22.04 LTS 0.14.3-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2022-44940

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

github.com/NixOS/patchelf#419 pull request

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-44940 updated 2025-11-21 cvss 7.5

patchelf: an out-of-bounds read via the function modifyRPath

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: total
Assessed: 18 mo ago (2025-04-17)

Exploit prediction

1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/NixOS/patchelf/pull/419 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CNA	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
OSV	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
GitHub	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	patchelf	<0.16.1.0	0.16.1.0
pypi	pypatchelf	all versions	no fix listed

Classification

Weakness

CWE-125 Out-of-bounds Read

References

github.com /NixOS/patchelf/pull/419
web, exploit, patch, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2022-44940
advisory
github.com /pypa/advisory-database/tree/main/vulns/patchelf/PYSEC-2022-43144.yaml
web
github.com /pypa/advisory-database/tree/main/vulns/pypatchelf/PYSEC-2022-43151.yaml
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary