Heap-based buffer overflow in libdwarf - CVE-2022-32200
Published: June 2, 2022
Vulnerability identifier: #VU63946
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-32200
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in _dwarf_check_string_valid in dwarf_util.c. A remote attacker can trick a victim to open a specially crafted file, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
libdwarf
Ubuntu
dwarfutils (Ubuntu package)
Ubuntu
dwarfutils (Ubuntu package)
How to mitigate CVE-2022-32200
Install updates from vendor's website.
dwarfutils (Ubuntu package) - addressed in versions 20210528-1ubuntu0.22.04.1~esm1, 20210528-1ubuntu0.24.04.1~esm1, 20210528-1ubuntu0.24.10.1, 20210528-1ubuntu0.25.04.1