Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2012-4213

Use After Free

Published: Nov 21, 2012 | Modified: Apr 11, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
9.3 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
6.8 CRITICAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2012-4213
CWEhttps://cwe.mitre.org/data/definitions/416.html

Use-after-free vulnerability in the nsEditor::FindNextLeafNode function 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 (heap memory corruption) via unspecified vectors.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
FirefoxMozilla*10.0.11 (excluding)
FirefoxMozilla*17.0 (excluding)
SeamonkeyMozilla*2.14 (excluding)
ThunderbirdMozilla*17.0 (excluding)
Thunderbird_esrMozilla*10.0.11 (excluding)
FirefoxUbuntuhardy*
FirefoxUbuntulucid*
FirefoxUbuntuoneiric*
FirefoxUbuntuprecise*
FirefoxUbuntuquantal*
SeamonkeyUbuntuhardy*
SeamonkeyUbuntulucid*
SeamonkeyUbuntuoneiric*
ThunderbirdUbuntuhardy*
ThunderbirdUbuntulucid*
ThunderbirdUbuntuoneiric*
ThunderbirdUbuntuprecise*
ThunderbirdUbuntuquantal*
Xulrunner-1.9.2Ubuntuhardy*
Xulrunner-1.9.2Ubuntulucid*

Potential Mitigations

References

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