Description
Multiple unspecified vulnerabilities in the JavaScript engine in Mozilla Firefox before 3.0.14 and 3.5.x before 3.5.2, Thunderbird before 2.0.0.24, and SeaMonkey before 1.1.19 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to use of mutable strings in the js_StringReplaceHelper function in js/src/jsstr.cpp, and unknown vectors.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | icedove | 2.0.0.24-0lenny1 | DSA-2025-1 |
| Debian 5.0 | xulrunner | 1.9.0.14-0lenny1 | DSA-1885-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | firefox | 3.0.14-1.el5_4 | RHSA-2009:1430 |
| RHEL 5 | nspr +1 | 4.7.5-1.el5_4 | RHSA-2009:1430 |
| RHEL 5 | thunderbird | 2.0.0.24-2.el5_4 | RHSA-2010:0153 |
| RHEL 5 | xulrunner +2 | 1.9.0.14-1.el5_4 | RHSA-2009:1430 |
| RHEL 4 | firefox | 3.0.14-1.el4 | RHSA-2009:1430 |
| RHEL 4 | nspr +1 | 4.7.5-1.el4_8 | RHSA-2009:1430 |
| RHEL 4 | seamonkey +5 | 1.0.9-48.el4_8 | RHSA-2009:1431 |
| RHEL 4 | thunderbird | 1.5.0.12-25.el4 | RHSA-2010:0154 |
| RHEL 3 | seamonkey +9 | 1.0.9-0.45.el3 | RHSA-2009:1432 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 2.0.0.24-2.el5_4 | RHSA-2010:0153 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
Advisories 8
- RHSA-2009:1432 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2009:1430 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2010:0154 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:1431 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2025-1 icedove - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1885-1 xulrunner - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2010:0153 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jan 14, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- DSA-1885 vendor-advisory
- RHSA-2010:0153 vendor-advisory
- 36343 vdb-entry
- 39001 third-party-advisory
- SUSE-SA:2009:048 vendor-advisory
- RHSA-2009:1430 vendor-advisory
- ADV-2010-0648 vdb-entry
- ADV-2010-0650 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=441714
- 36692 third-party-advisory
- SUSE-SR:2010:013 vendor-advisory
- oval:org.mitre.oval:def:5717 vdb-entry signature
- 36670 third-party-advisory
- 36671 third-party-advisory
- http://www.mozilla.org/security/announce/2009/mfsa2009-47.html
- 38977 third-party-advisory
- 36669 third-party-advisory
- oval:org.mitre.oval:def:11365 vdb-entry signature
- https://bugzilla.mozilla.org/show_bug.cgi?id=505305
- RHSA-2010:0154 vendor-advisory
- RHSA-2009:1432 vendor-advisory
- mozilla-javascript-engine-code-exec(53158) vdb-entry
- 37098 third-party-advisory
- USN-915-1 vendor-advisory
- http://www.mozilla.org/security/announce/2010/mfsa2010-07.html
- RHSA-2009:1431 vendor-advisory