CVE-2014-1569

high
Published 2014-12-15 · Modified 2026-05-06
CVSS v3
CVSS v2
7.5
VIR risk
7.5

Description

The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function's improper handling of an arbitrary-length encoding of 0x00.

Predictions

Exploit likelihood
20%
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-2014-1569

vendor Authored 2026-05-27

Vendor advisory: security@mozilla.org — https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.17.3_release_notes

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed2:3.17.2-1.1
debian debianbullseyefixed2:3.17.2-1.1
debian debianforkyfixed2:3.17.2-1.1
debian debiansidfixed2:3.17.2-1.1
debian debiantrixiefixed2:3.17.2-1.1

Application impact

VendorProductVersionsFixed
mozilla mozillanetwork_security_services{"endIncluding":"3.16.2.3"}
mozilla mozillanetwork_security_services3.16.2.0
mozilla mozillanetwork_security_services3.16.2.1
mozilla mozillanetwork_security_services3.16.2.2
mozilla mozillanetwork_security_services3.17.0
mozilla mozillanetwork_security_services3.17.1
mozilla mozillanetwork_security_services3.17.2

References

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