LIEF vulnerable to denial of service through segmentation fault

published 2022-10-03 4 y ago modified 2026-06-17 4 mo ago also GHSA-38hf-c37x-32hv , PYSEC-2022-43138 , EUVD-2022-0143

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits: 0; none known

A vulnerability in the LIEF::MachO::BinaryParser::init_and_parse function of LIEF v0.12.1 allows attackers to cause a denial of service (DOS) through a segmentation fault via a crafted MachO file.

Patch / fix

fixed in 1 links 2

pypi lief 0.12.2

github.com/lief-project/LIEF@ad81191 commit
github.com/lief-project/LIEF@fde2c48 commit

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/lief-project/LIEF/issues/781 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
GitHub	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
OSV	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	lief	<0.12.2	0.12.2

References

github.com /lief-project/LIEF/commit/ad811916670e83947560b6f3c45df6e71d3885af
web
github.com /lief-project/LIEF/commit/fde2c48986739fabd2cf9b40b9af149a89c57850
web
github.com /lief-project/LIEF/issues/781
web, exploit, issue-tracking, third-party-advisory, report
nvd.nist.gov /vuln/detail/CVE-2022-40922
advisory
github.com /lief-project/LIEF
package
github.com /pypa/advisory-database/tree/main/vulns/lief/PYSEC-2022-43138.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