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Fencer Intel
critical 9.3

CVE-2010-1203 json

The JavaScript engine in Mozilla Firefox 3.6.x before 3.6.4 allow remote attackers to cause a denial of service (memory corruption and appl…

published 16y ago modified 4mo ago also EUVD-2010-1233

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The JavaScript engine in Mozilla Firefox 3.6.x before 3.6.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors that trigger an assertion failure in jstracer.cpp.

Patch / fix

  • firefox RHEL 5 3.6.4-8.el5
  • esc RHEL 5 1.1.0-12.el5
  • yelp RHEL 5 2.16.0-26.el5
  • totem RHEL 5 2.16.7-7.el5
  • devhelp RHEL 5 0.12-21.el5
  • xulrunner RHEL 5 1.9.2.4-10.el5
  • totem-mozplugin RHEL 5 2.16.7-7.el5
  • gnome-python2-extras RHEL 5 2.14.2-7.el5

red hat advisories RHSA-2010:0501RHSA-2010:0500

  • 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-2010-1203 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-2010-1203 updated cvss 6.8

Mozilla Crashes with evidence of memory corruption

  • Red Hat Enterprise Linux (v. 5 server) esc 1.1.0-12.el5, totem 2.16.7-7.el5, yelp 2.16.0-26.el5, devhelp 0.12-21.el5, firefox 3.6.4-8.el5, xulrunner 1.9.2.4-10.el5, +6 more
    fixed: vendor fix RHSA-2010:0501
  • Red Hat Enterprise Linux AS version 4 firefox 3.6.4-8.el4
    fixed: vendor fix RHSA-2010:0500
  • Red Hat Enterprise Linux Desktop (v. 5 client) esc 1.1.0-12.el5, totem 2.16.7-7.el5, yelp 2.16.0-26.el5, devhelp 0.12-21.el5, firefox 3.6.4-8.el5, xulrunner 1.9.2.4-10.el5, +6 more
    fixed: vendor fix RHSA-2010:0501
  • Red Hat Enterprise Linux Desktop version 4 firefox 3.6.4-8.el4
    fixed: vendor fix RHSA-2010:0500
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) totem 2.16.7-7.el5, devhelp 0.12-21.el5, xulrunner 1.9.2.4-10.el5
    fixed: vendor fix RHSA-2010:0501
  • Red Hat Enterprise Linux ES version 4 firefox 3.6.4-8.el4 Red Hat Enterprise Linux WS version 4 firefox 3.6.4-8.el4
    fixed: vendor fix RHSA-2010:0500
  • Red Hat Enterprise Linux 6 firefox
    not affected: vulnerable code not present

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

3.87% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

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.