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Fencer Intel
high 7.5

CVE-2015-7176 json

The AnimationThread function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 uses an incorrect argument to the sscanf funct…

published 2015-09-24 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-7108

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.7%
EPSS 3.7% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

The AnimationThread function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 uses an incorrect argument to the sscanf function, which might allow remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via unknown vectors.

Patch / fix

  • firefox Ubuntu 14.04 LTS 41.0+build3-0ubuntu0.14.04.1
  • thunderbird Ubuntu 14.04 LTS 1:38.3.0+build1-0ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2015-7176

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 38.3.0-1.el5_11
  • thunderbird RHEL 6 38.3.0-1.el6_7
  • thunderbird RHEL 7 38.3.0-1.el7_1
  • thunderbird RHEL 7 38.3.0-1.ael7b_1
  • firefox RHEL 5 38.3.0-2.el5_11
  • firefox RHEL 6 38.3.0-2.el6_7
  • firefox RHEL 7 38.3.0-2.el7_1

red hat advisories RHSA-2015:1852RHSA-2015:1834

  • MozillaFirefox SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +6 more 38.3.0esr-22.1
  • mozilla-nspr SLES for SAP 12, SLES 12, SLED 12 +1 more 4.10.9-6.1
  • MozillaFirefox SLES for SAP 12, SLES 12, SLED 12 +1 more 38.3.0esr-48.1

suse advisories SUSE-SU-2015:1703-1SUSE-SU-2015:1680-1

  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-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-2015-7176 updated cvss 6.8

Mozilla: Vulnerabilities found through code inspection (MFSA 2015-112)

  • Red Hat Enterprise Linux (v. 5 server) firefox 38.3.0-2.el5_11 Red Hat Enterprise Linux Client (v. 7) firefox 38.3.0-2.el7_1, thunderbird 38.3.0-1.el7_1 Red Hat Enterprise Linux Client Optional (v. 7) firefox 38.3.0-2.el7_1 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 38.3.0-2.el5_11, thunderbird 38.3.0-1.el5_11 Red Hat Enterprise Linux Desktop (v. 6) firefox 38.3.0-2.el6_7, thunderbird 38.3.0-1.el6_7 Red Hat Enterprise Linux Desktop Optional (v. 6) firefox 38.3.0-2.el6_7
    +1 more products
    Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 38.3.0-2.el6_7
    fixed: vendor fix RHSA-2015:1834
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 38.3.0-1.el5_11
    fixed: vendor fix RHSA-2015:1852
  • Red Hat Enterprise Linux Server (v. 6) firefox 38.3.0-2.el6_7 Red Hat Enterprise Linux Server (v. 7) firefox 38.3.0-2.el7_1, firefox 38.3.0-2.ael7b_1 Red Hat Enterprise Linux Server Optional (v. 6) firefox 38.3.0-2.el6_7, thunderbird 38.3.0-1.el6_7 Red Hat Enterprise Linux Server Optional (v. 7) firefox 38.3.0-2.el7_1, thunderbird 38.3.0-1.el7_1, thunderbird 38.3.0-1.ael7b_1 Red Hat Enterprise Linux Workstation (v. 6) firefox 38.3.0-2.el6_7, thunderbird 38.3.0-1.el6_7 Red Hat Enterprise Linux Workstation (v. 7) firefox 38.3.0-2.el7_1, thunderbird 38.3.0-1.el7_1
    +2 more products
    Red Hat Enterprise Linux Workstation Optional (v. 6) firefox 38.3.0-2.el6_7 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 38.3.0-2.el7_1
    fixed: vendor fix RHSA-2015:1834

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

3.67% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/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.