Out-of-bounds read in elfutils - CVE-2018-16403
Published: September 3, 2018 / Updated: August 8, 2020
Vulnerability identifier: #VU36734
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-16403
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Sourceware
Affected software:
elfutils
elfutils
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
libdw in elfutils 0.173 checks the end of the attributes list incorrectly in dwarf_getabbrev in dwarf_getabbrev.c and dwarf_hasattr in dwarf_hasattr.c, leading to a heap-based buffer over-read and an application crash.
How to mitigate CVE-2018-16403
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
- https://access.redhat.com/errata/RHSA-2019:2197
- https://sourceware.org/bugzilla/show_bug.cgi?id=23529
- https://sourceware.org/git/?p=elfutils.git;a=commit;h=6983e59b727458a6c64d9659c85f08218bc4fcda
- https://usn.ubuntu.com/4012-1/