CVE catalog

CVE-2020-23910

asn1c: CVE-2020-23910

Severity: Low
Published: Jul 18, 2023, 2:15:11 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.30% · Oct 25, 2026

Stack-based buffer overflow vulnerability in asn1c through v0.9.28 via function genhash_get in genhash.c.

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	asn1c	sid	`0.9.28+dfsg-7`	vulnerable
Debian	asn1c	forky	`0.9.28+dfsg-7`	vulnerable
Debian	asn1c	trixie	`0.9.28+dfsg-5`	vulnerable
Debian	asn1c	bookworm	`0.9.28+dfsg-5`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	asn1c	source	sid	`(unfixed)`	unimportant	Not reported	Not reported
Debian	asn1c	source	forky	`(unfixed)`	unimportant	Not reported	Not reported
Debian	asn1c	source	trixie	`(unfixed)`	unimportant	Not reported	Not reported
Debian	asn1c	source	bookworm	`(unfixed)`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[asn1c]Affected
Details (2)
- 0.9.28+dfsg-5 · amd64 · bookworm
  Affected
  dsa · asn1c · debian · bookworm; dsa · asn1c · debian · 12
- 0.9.28+dfsg-5 · arm64 · bookworm
  Affected
  dsa · asn1c · debian · bookworm; dsa · asn1c · debian · 12
[asn1c-doc]Affected
Source package: [asn1c]
Details (2)
- 0.9.28+dfsg-5 · all · bookworm
  Affected
  dsa · asn1c · debian · bookworm; dsa · asn1c · debian · 12
- 0.9.28+dfsg-5 · all · bookworm
  Affected
  dsa · asn1c · debian · bookworm; dsa · asn1c · debian · 12

[Debian 13 (Trixie)]

[asn1c]Affected
Source package: [asn1c]
Details (2)
- 0.9.28+dfsg-5 · amd64 · trixie
  Affected
  dsa · asn1c · debian · 13
- 0.9.28+dfsg-5+b1 · arm64 · trixie
  Affected
  dsa · asn1c · debian · 13
[asn1c-doc]Affected
Source package: [asn1c]
Details (2)
- 0.9.28+dfsg-5 · all · trixie
  Affected
  dsa · asn1c · debian · 13
- 0.9.28+dfsg-5 · all · trixie
  Affected
  dsa · asn1c · debian · 13

Observed: Oct 23, 2026, 5:49:08 PM UTC

References

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