Out-of-bounds write in WebKitGTK+ - CVE-2018-12911
Published: October 26, 2018
Vulnerability identifier: #VU15546
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-12911
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WebKitGTK
Affected software:
WebKitGTK+
WebKitGTK+
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code with elevated privileges.
The weakness exists due to an off-by-one error in the get_simple_globs functions in ThirdParty/xdgmime/src/xdgmimecache.c and ThirdParty/xdgmime/src/xdgmimeglob.c. A remote attacker can trigger out-of-bounds write and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to an off-by-one error in the get_simple_globs functions in ThirdParty/xdgmime/src/xdgmimecache.c and ThirdParty/xdgmime/src/xdgmimeglob.c. A remote attacker can trigger out-of-bounds write and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
How to mitigate CVE-2018-12911
Install update from vendor's website.