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9.3
CVE-2012-4204: Firefox, Thunderbird, SeaMonkey can run attacker code
CVE-2012-4204 · published 13 years ago
Summary
Versions of Firefox, Thunderbird and SeaMonkey older than 17.0 (SeaMonkey older than 2.14) contain a flaw in their JavaScript engine that could let a remote attacker run any code on a user's computer or cause the program to crash. This may affect Linux distributions that ship these versions. Upgrade to the latest versions of these browsers and mail client, or apply the vendor's security updates, to protect your systems.
What to do
- Update mozilla firefox to version 17.0 or later.
- Update mozilla seamonkey to version 2.14 or later.
- Update mozilla thunderbird to version 17.0 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| mozilla | firefox |
< 17.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | seamonkey |
< 2.14 cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* |
| mozilla | thunderbird |
< 17.0 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| opensuse | opensuse |
11.4 12.1 12.2 cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* |
| suse | linux_enterprise_desktop |
10 11 cpe:2.3:o:suse:linux_enterprise_desktop:10:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_server |
10 11 cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_software_development_kit |
10 11 cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp4:*:*:*:*:*:* |
| canonical | ubuntu_linux |
10.04 11.10 12.04 12.10 cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* |
Original advisory text
The str_unescape function in the JavaScript engine in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a de...
The str_unescape function in the JavaScript engine in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via unspecified vectors.
References
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html Mailing List Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html Mailing List Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html Mailing List Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html Mailing List Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html Mailing List Third Party Advisory
- http://osvdb.org/87592 Broken Link
- http://secunia.com/advisories/51369 Third Party Advisory
- http://secunia.com/advisories/51370 Third Party Advisory
- http://secunia.com/advisories/51381 Third Party Advisory
- http://secunia.com/advisories/51434 Third Party Advisory
- http://secunia.com/advisories/51439 Third Party Advisory
- http://secunia.com/advisories/51440 Third Party Advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-96.html Vendor Advisory
- http://www.ubuntu.com/usn/USN-1636-1 Third Party Advisory
- http://www.ubuntu.com/usn/USN-1638-1 Third Party Advisory
- http://www.ubuntu.com/usn/USN-1638-2 Third Party Advisory
- http://www.ubuntu.com/usn/USN-1638-3 Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=778603 Exploit Issue Tracking Patch Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3... Third Party Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Severity
9.3
Critical
Type
CWE-119Buffer Overflow
Timeline
Published21 Nov 2012
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2012-4204 · NVD
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