Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2012-5830

Use After Free

Published: Nov 21, 2012 | Modified: Apr 11, 2025
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
6.8 CRITICAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V3
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
root.io logo minimus.io logo echo.ai logo
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2012-5830
CWEhttps://cwe.mitre.org/data/definitions/416.html

Use-after-free vulnerability in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 on Mac OS X allows remote attackers to execute arbitrary code via an HTML document.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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*17.0 (excluding)
FirefoxMozilla10.0 (including)10.0.11 (excluding)
SeamonkeyMozilla*2.14 (excluding)
ThunderbirdMozilla*17.0 (excluding)
Thunderbird_esrMozilla10.0 (including)10.0.11 (excluding)
Red Hat Enterprise Linux 5RedHatfirefox-0:10.0.11-1.el5_8*
Red Hat Enterprise Linux 5RedHatxulrunner-0:10.0.11-1.el5_8*
Red Hat Enterprise Linux 5RedHatthunderbird-0:10.0.11-1.el5_8*
Red Hat Enterprise Linux 6RedHatfirefox-0:10.0.11-1.el6_3*
Red Hat Enterprise Linux 6RedHatxulrunner-0:10.0.11-1.el6_3*
Red Hat Enterprise Linux 6RedHatthunderbird-0:10.0.11-1.el6_3*
FirefoxUbuntuhardy*
FirefoxUbuntulucid*
FirefoxUbuntuoneiric*
FirefoxUbuntuprecise*
FirefoxUbuntuquantal*
SeamonkeyUbuntuhardy*
SeamonkeyUbuntulucid*
SeamonkeyUbuntuoneiric*
ThunderbirdUbuntuhardy*
ThunderbirdUbuntulucid*
ThunderbirdUbuntuoneiric*
ThunderbirdUbuntuprecise*
ThunderbirdUbuntuquantal*
Xulrunner-1.9.2Ubuntuhardy*
Xulrunner-1.9.2Ubuntulucid*

Potential Mitigations

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2026 Aqua Security Software Ltd.   Privacy Policy | Terms of Use