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Fencer Intel
critical 9.8

CVE-2014-1486 json

Use-after-free vulnerability in the imgRequestProxy function in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird befo…

published 12y ago modified 4mo ago also EUVD-2014-1562

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.0%
EPSS 7.0% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

Use-after-free vulnerability in the imgRequestProxy function in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonkey before 2.24 allows remote attackers to execute arbitrary code via vectors involving unspecified Content-Type values for image data.

Patch / fix

  • mozilla firefox 24.3, 27.0
  • mozilla seamonkey 2.24
  • mozilla thunderbird 24.3
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 24.3.0-2.el5_10
  • thunderbird RHEL 6 24.3.0-2.el6_5
  • firefox RHEL 5 24.3.0-2.el5_10
  • firefox RHEL 6 24.3.0-2.el6_5

red hat advisories RHSA-2014:0133RHSA-2014:0132

  • 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

Is CVE-2014-1486 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-2014-1486 updated cvss 6.8

Mozilla: Use-after-free with imgRequestProxy and image proccessing (MFSA 2014-08)

  • Red Hat Enterprise Linux (v. 5 server) firefox 24.3.0-2.el5_10 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 24.3.0-2.el5_10, thunderbird 24.3.0-2.el5_10 Red Hat Enterprise Linux Desktop (v. 6) firefox 24.3.0-2.el6_5, thunderbird 24.3.0-2.el6_5 Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 24.3.0-2.el6_5
    fixed: vendor fix RHSA-2014:0132
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 24.3.0-2.el5_10
    fixed: vendor fix RHSA-2014:0133
  • Red Hat Enterprise Linux Server (v. 6) firefox 24.3.0-2.el6_5
    fixed: vendor fix RHSA-2014:0132
  • Red Hat Enterprise Linux Server Optional (v. 6) thunderbird 24.3.0-2.el6_5
    fixed: vendor fix RHSA-2014:0133
  • Red Hat Enterprise Linux Workstation (v. 6) firefox 24.3.0-2.el6_5, thunderbird 24.3.0-2.el6_5
    fixed: vendor fix RHSA-2014:0132

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

7.01% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

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.