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Vulnerability record · CVE-2012-5838 · published 21 November 2012

CVE-2012-5838: Mozilla firefox memory buffer overflow vulnerability

Mozilla · Firefox

The copyTexImage2D implementation in the WebGL subsystem 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 large image dimensions.

9.3 CVSS 2.0 High EPSS 6.2% · top 6.8% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
6.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
40References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

The copyTexImage2D implementation in the WebGL subsystem 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 large image dimensions.

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html Mailing ListThird Party Advisory
http://osvdb.org/87599 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/mfsa2012-106.html Vendor Advisory
http://www.securityfocus.com/bid/56644 Third Party AdvisoryVDB Entry
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=802778 ExploitIssue TrackingPatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16896 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html Mailing ListThird Party Advisory
http://osvdb.org/87599 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/mfsa2012-106.html Vendor Advisory
http://www.securityfocus.com/bid/56644 Third Party AdvisoryVDB Entry
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=802778 ExploitIssue TrackingPatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16896 Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2012-5838), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.