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Fencer Intel
medium 5.0

CVE-2012-0441 json

The ASN.1 decoder in the QuickDER decoder in Mozilla Network Security Services (NSS) before 3.13.4, as used in Firefox 4.x through 12.0, Fi…

published 2012-06-05 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-0473

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

The ASN.1 decoder in the QuickDER decoder in Mozilla Network Security Services (NSS) before 3.13.4, as used in Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0 through 12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10, allows remote attackers to cause a denial of service (application crash) via a zero-length item, as demonstrated by (1) a zero-length basic constraint or (2) a zero-length field in an OCSP response.

Patch / fix

  • nss Debian 14, Debian 13, Debian 12 3.13.4-1

debian advisories DEBIAN-CVE-2012-0441

  • nss-util RHEL 6 3.13.5-1.el6_3
  • nss RHEL 6 3.13.5-1.el6_3
  • nspr RHEL 6 4.9.1-2.el6_3
  • nss-tools RHEL 6 3.13.5-1.el6_3
  • nss-sysinit RHEL 6 3.13.5-1.el6_3
  • nss RHEL 5 3.13.5-4.el5_8
  • nspr RHEL 5 4.9.1-4.el5_8
  • nss-tools RHEL 5 3.13.5-4.el5_8

red hat advisories RHSA-2012:1091RHSA-2012:1090

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-0441 updated cvss 4.3

nss: NSS parsing errors with zero length items

  • Red Hat Enterprise Linux (v. 5 server) nspr 4.9.1-4.el5_8, nss 3.13.5-4.el5_8, nss-tools 3.13.5-4.el5_8 Red Hat Enterprise Linux Desktop (v. 5 client) nspr 4.9.1-4.el5_8, nss 3.13.5-4.el5_8, nss-tools 3.13.5-4.el5_8
    fixed: vendor fix RHSA-2012:1090
  • Red Hat Enterprise Linux Desktop (v. 6) nspr 4.9.1-2.el6_3, nss 3.13.5-1.el6_3, nss-util 3.13.5-1.el6_3, nss-tools 3.13.5-1.el6_3, nss-sysinit 3.13.5-1.el6_3 Red Hat Enterprise Linux Desktop Optional (v. 6) nspr 4.9.1-2.el6_3, nss 3.13.5-1.el6_3, nss-util 3.13.5-1.el6_3 Red Hat Enterprise Linux HPC Node (v. 6) nspr 4.9.1-2.el6_3, nss 3.13.5-1.el6_3, nss-util 3.13.5-1.el6_3, nss-tools 3.13.5-1.el6_3, nss-sysinit 3.13.5-1.el6_3 Red Hat Enterprise Linux HPC Node Optional (v. 6) nspr 4.9.1-2.el6_3, nss 3.13.5-1.el6_3, nss-util 3.13.5-1.el6_3 Red Hat Enterprise Linux Server (v. 6) nspr 4.9.1-2.el6_3, nss 3.13.5-1.el6_3, nss-util 3.13.5-1.el6_3, nss-tools 3.13.5-1.el6_3, nss-sysinit 3.13.5-1.el6_3 Red Hat Enterprise Linux Server Optional (v. 6) nss 3.13.5-1.el6_3
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) nspr 4.9.1-2.el6_3, nss 3.13.5-1.el6_3, nss-util 3.13.5-1.el6_3, nss-tools 3.13.5-1.el6_3, nss-sysinit 3.13.5-1.el6_3 Red Hat Enterprise Linux Workstation Optional (v. 6) nss 3.13.5-1.el6_3
    fixed: vendor fix RHSA-2012:1091
  • Red Hat RHEL Desktop Workstation (v. 5 client) nspr 4.9.1-4.el5_8, nss 3.13.5-4.el5_8
    fixed: vendor fix RHSA-2012:1090

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.89% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel 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.