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Fencer Intel
critical 10.0

CVE-2015-2739 json

The ArrayBufferBuilder::append function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird…

published 11y ago modified 4mo ago also EUVD-2015-2829

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

The ArrayBufferBuilder::append function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 accesses unintended memory locations, which has unspecified impact and attack vectors.

Patch / fix

  • firefox Ubuntu 14.04 LTS 39.0+build5-0ubuntu0.14.04.1
  • thunderbird Ubuntu 14.04 LTS 1:31.8.0+build1-0ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2015-2739

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 31.8.0-1.el5_11
  • thunderbird RHEL 6 31.8.0-1.el6_6
  • thunderbird RHEL 7 31.8.0-1.el7_1
  • thunderbird RHEL 7 31.8.0-1.ael7b_1
  • firefox RHEL 5 38.1.0-1.el5_11
  • firefox RHEL 6 38.1.0-1.el6_6
  • firefox RHEL 7 38.1.0-1.el7_1

red hat advisories RHSA-2015:1455RHSA-2015:1207

  • mozilla-nss SLES 11 SP2-LTSS, SLES 11 SP1-TERADATA, SLES 11 SP1-LTSS 3.19.2.0-0.7.1
  • firefox-gcc47 SLES 11 SP2-LTSS, SLES 11 SP1-TERADATA, SLES 11 SP1-LTSS 4.7.2_20130108-0.37.2
  • MozillaFirefox SLES 11 SP2-LTSS, SLES 11 SP1-TERADATA, SLES 11 SP1-LTSS 38.2.0esr-10.1
  • MozillaFirefox-branding-SLED SLES 11 SP2-LTSS, SLES 11 SP1-TERADATA, SLES 11 SP1-LTSS 31.0-0.5.7.11
  • mozilla-nss SLES 11 SP4, SLES 11 SP3-TERADATA, SLES 11 SP3 +6 more 3.19.2_CKBI_1.98-0.10.1
  • mozilla-nspr SLES 11 SP4, SLES 11 SP3-TERADATA, SLES 11 SP3 +6 more 4.10.8-0.5.1
  • MozillaFirefox SLES 11 SP4, SLES 11 SP3-TERADATA, SLES 11 SP3 +6 more 31.8.0esr-0.10.1
  • mozilla-nss SLES for SAP 12, SLES 12, SLED 12 +1 more 3.19.2_CKBI_1.98-21.1

suse advisories SUSE-SU-2015:1449-1SUSE-SU-2015:1268-1SUSE-SU-2015:1268-2SUSE-SU-2015:1269-1

  • 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

Is CVE-2015-2739 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2015-2739 updated cvss 6.8

Mozilla: Vulnerabilities found through code inspection (MFSA 2015-66)

  • Red Hat Enterprise Linux (v. 5 server) firefox 38.1.0-1.el5_11 Red Hat Enterprise Linux Client (v. 7) firefox 38.1.0-1.el7_1, thunderbird 31.8.0-1.el7_1 Red Hat Enterprise Linux Client Optional (v. 7) firefox 38.1.0-1.el7_1 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 38.1.0-1.el5_11, thunderbird 31.8.0-1.el5_11 Red Hat Enterprise Linux Desktop (v. 6) firefox 38.1.0-1.el6_6, thunderbird 31.8.0-1.el6_6 Red Hat Enterprise Linux Desktop Optional (v. 6) firefox 38.1.0-1.el6_6
    +1 more products
    Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 38.1.0-1.el6_6
    fixed: vendor fix RHSA-2015:1207
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 31.8.0-1.el5_11
    fixed: vendor fix RHSA-2015:1455
  • Red Hat Enterprise Linux Server (v. 6) firefox 38.1.0-1.el6_6 Red Hat Enterprise Linux Server (v. 7) firefox 38.1.0-1.el7_1, firefox 38.1.0-1.ael7b_1 Red Hat Enterprise Linux Server Optional (v. 6) firefox 38.1.0-1.el6_6, thunderbird 31.8.0-1.el6_6 Red Hat Enterprise Linux Server Optional (v. 7) firefox 38.1.0-1.el7_1, thunderbird 31.8.0-1.el7_1, thunderbird 31.8.0-1.ael7b_1 Red Hat Enterprise Linux Workstation (v. 6) firefox 38.1.0-1.el6_6, thunderbird 31.8.0-1.el6_6 Red Hat Enterprise Linux Workstation (v. 7) firefox 38.1.0-1.el7_1, thunderbird 31.8.0-1.el7_1
    +2 more products
    Red Hat Enterprise Linux Workstation Optional (v. 6) firefox 38.1.0-1.el6_6 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 38.1.0-1.el7_1
    fixed: vendor fix RHSA-2015:1207

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

2.73% 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 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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.