CVE catalog

CVE-2020-24821

libelfin: CVE-2020-24821

Severity: Medium
Published: Aug 4, 2021, 3:15:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.69% · Oct 25, 2026

A vulnerability in the dwarf::cursor::skip_form function of Libelfin v0.3 allows attackers to cause a denial of service (DOS) through a segmentation fault via a crafted ELF file.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libelfin	bookworm	`0.3-3`	vulnerable
Ubuntu	libelfin	18.04	`0.3-1`	vulnerable
Ubuntu	libelfin	20.04	`0.3-1`	vulnerable
Ubuntu	libelfin	20.04	`0.3-1ubuntu1`	vulnerable
Ubuntu	libelfin	20.04	`0.3-1ubuntu2`	vulnerable
Ubuntu	libelfin	22.04	`0.3-2.1`	vulnerable
Ubuntu	libelfin	24.04	`0.3-3`	vulnerable
Ubuntu	libelfin	24.04	`0.3-3.1`	vulnerable
Ubuntu	libelfin	24.04	`0.3-3.1build1`	vulnerable
Ubuntu	libelfin	24.04	`0.3-3.1ubuntu1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libelfin	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1014122]

[Debian bug #1014122]

Notes

[bookworm] libelfin: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libdwarf++0]Affected
Source package: [libelfin]
Details (2)
- 0.3-3 · amd64 · bookworm
  Affected
  dsa · libelfin · debian · bookworm; dsa · libelfin · debian · 12
- 0.3-3 · arm64 · bookworm
  Affected
  dsa · libelfin · debian · bookworm; dsa · libelfin · debian · 12
[libelf++0]Affected
Source package: [libelfin]
Details (2)
- 0.3-3 · amd64 · bookworm
  Affected
  dsa · libelfin · debian · bookworm; dsa · libelfin · debian · 12
- 0.3-3 · arm64 · bookworm
  Affected
  dsa · libelfin · debian · bookworm; dsa · libelfin · debian · 12
[libelfin-dev]Affected
Source package: [libelfin]
Details (2)
- 0.3-3 · amd64 · bookworm
  Affected
  dsa · libelfin · debian · bookworm; dsa · libelfin · debian · 12
- 0.3-3 · arm64 · bookworm
  Affected
  dsa · libelfin · debian · bookworm; dsa · libelfin · debian · 12

Observed: Oct 23, 2026, 5:49:21 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]