Memory corruption in Glibc - CVE-2018-11236
Published: May 24, 2018 / Updated: July 20, 2018
Vulnerability identifier: #VU13011
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-11236
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
Glibc
Glibc
Detailed vulnerability description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists in the stdlib/canonicalize.c source code in the GNU glibc library due to improper processing of long pathname arguments to the realpath function. A local unauthenticated attacker can send long pathname arguments to a targeted system that is using 32-bit architecture, trigger an integer overflow condition that can lead to stack-based buffer overflow condition and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2018-11236
Install update from vendor's website.