Out-of-bounds read in Mozilla Firefox - CVE-2018-18504
Published: January 29, 2019
Vulnerability identifier: #VU17260
CSH Severity: Low
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-18504
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when the buffer of a texture client is freed while it is still in use during graphic operations. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger out-of-bounds read error and read contents of memory on the system.
Affected software
Mozilla Firefox
Arch Linux
Fedora
firefox
Arch Linux
Fedora
firefox
How to mitigate CVE-2018-18504
Install updates from vendor's website.
Mozilla Firefox - update to 65.0
firefox - addressed in versions 65.0-1.fc28, 65.0-1.fc29
firefox - addressed in versions 65.0-1.fc28, 65.0-1.fc29