CVE-2017-12966

medium

Published 2017-08-20 · Modified 2026-05-13

CVSS v3

6.5

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2

4.3

VIR risk

6.5

Description

The asn1f_lookup_symbol_impl function in asn1fix_retrieve.c in libasn1fix.a in asn1c 0.9.28 allows remote attackers to cause a denial of service (segmentation fault) via a crafted .asn1 file.

Predictions

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-12966

OS impact

OS	Version	Status
debian	bookworm	affected
debian	bullseye	affected
debian	forky	affected
debian	sid	affected
debian	trixie	affected

Application impact

Vendor	Product	Versions	Fixed
asn1c_project	asn1c	`0.9.28`

References

https://security-tracker.debian.org/tracker/CVE-2017-12966
https://drive.google.com/open?id=0B9DojFnTUSNGd05zSHI1RmpKQjQ

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.