Memory leak in FreeBSD - CVE-2017-1086
Published: November 16, 2017 / Updated: November 16, 2017
Vulnerability identifier: #VU9341
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-1086
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to obtain potentially sensitive information.
The vulnerability exists due to an error in implementation of the ptrace(PT_LWPINFO) system call. A local user can use debugger to read portions of data from kernel.
Affected software
FreeBSD
How to mitigate CVE-2017-1086
Install update from vendor's repository:
https://security.FreeBSD.org/patches/SA-17:08/ptrace.patch
https://security.FreeBSD.org/patches/SA-17:08/ptrace.patch.asc
https://security.FreeBSD.org/patches/SA-17:08/ptrace.patch
https://security.FreeBSD.org/patches/SA-17:08/ptrace.patch.asc