Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2014-1512

Use After Free

Published: Mar 19, 2014 | Modified: Nov 25, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
10 HIGH
AV:N/AC:L/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-2014-1512
CWEhttps://cwe.mitre.org/data/definitions/416.html

Use-after-free vulnerability in the TypeObject class in the JavaScript engine in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allows remote attackers to execute arbitrary code by triggering extensive memory consumption while garbage collection is occurring, as demonstrated by improper handling of BumpChunk objects.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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*28.0 (excluding)
FirefoxMozilla24.0 (including)24.4 (excluding)
SeamonkeyMozilla*2.25 (excluding)
ThunderbirdMozilla*24.4 (excluding)
Red Hat Enterprise Linux 5RedHatfirefox-0:24.4.0-1.el5_10*
Red Hat Enterprise Linux 5RedHatthunderbird-0:24.4.0-1.el5_10*
Red Hat Enterprise Linux 6RedHatfirefox-0:24.4.0-1.el6_5*
Red Hat Enterprise Linux 6RedHatthunderbird-0:24.4.0-1.el6_5*
FirefoxUbuntudevel*
FirefoxUbuntulucid*
FirefoxUbuntuprecise*
FirefoxUbuntuquantal*
FirefoxUbuntusaucy*
FirefoxUbuntuupstream*
ThunderbirdUbuntudevel*
ThunderbirdUbuntulucid*
ThunderbirdUbuntuprecise*
ThunderbirdUbuntuquantal*
ThunderbirdUbuntusaucy*
ThunderbirdUbuntuupstream*

Potential Mitigations

References

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