CVE Vulnerabilities

CVE-2017-7784

Use After Free

Published: Jun 11, 2018 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
9.8 IMPORTANT
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM

A use-after-free vulnerability can occur when reading an image observer during frame reconstruction after the observer has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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

Name Vendor Start Version End Version
Debian_linux Debian 8.0 (including) 8.0 (including)
Debian_linux Debian 9.0 (including) 9.0 (including)
Red Hat Enterprise Linux 6 RedHat firefox-0:52.3.0-3.el6_9 *
Red Hat Enterprise Linux 6 RedHat thunderbird-0:52.3.0-1.el6_9 *
Red Hat Enterprise Linux 7 RedHat firefox-0:52.3.0-2.el7_4 *
Red Hat Enterprise Linux 7 RedHat thunderbird-0:52.3.0-1.el7_4 *
Firefox Ubuntu artful *
Firefox Ubuntu bionic *
Firefox Ubuntu cosmic *
Firefox Ubuntu devel *
Firefox Ubuntu disco *
Firefox Ubuntu eoan *
Firefox Ubuntu focal *
Firefox Ubuntu groovy *
Firefox Ubuntu hirsute *
Firefox Ubuntu impish *
Firefox Ubuntu jammy *
Firefox Ubuntu kinetic *
Firefox Ubuntu lunar *
Firefox Ubuntu mantic *
Firefox Ubuntu noble *
Firefox Ubuntu trusty *
Firefox Ubuntu upstream *
Firefox Ubuntu xenial *
Firefox Ubuntu zesty *
Mozjs38 Ubuntu artful *
Mozjs38 Ubuntu bionic *
Mozjs38 Ubuntu esm-apps/bionic *
Mozjs38 Ubuntu upstream *
Mozjs38 Ubuntu zesty *
Thunderbird Ubuntu artful *
Thunderbird Ubuntu bionic *
Thunderbird Ubuntu cosmic *
Thunderbird Ubuntu devel *
Thunderbird Ubuntu disco *
Thunderbird Ubuntu eoan *
Thunderbird Ubuntu focal *
Thunderbird Ubuntu groovy *
Thunderbird Ubuntu hirsute *
Thunderbird Ubuntu impish *
Thunderbird Ubuntu jammy *
Thunderbird Ubuntu kinetic *
Thunderbird Ubuntu lunar *
Thunderbird Ubuntu mantic *
Thunderbird Ubuntu noble *
Thunderbird Ubuntu trusty *
Thunderbird Ubuntu upstream *
Thunderbird Ubuntu xenial *
Thunderbird Ubuntu zesty *

Potential Mitigations

References