Heap-based buffer overflow in libde265 - CVE-2020-21598
Published: February 13, 2024
Vulnerability identifier: #VU86489
CSH Severity: High
CVSS v4: 9.3 [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]
CVE-ID: CVE-2020-21598
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 within the ff_hevc_put_unweighted_pred_8_sse() function. A remote attacker can pass specially crafted input to the application, 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
libde265
Ubuntu
libde265-0 (Ubuntu package)
Ubuntu
libde265-0 (Ubuntu package)
How to mitigate CVE-2020-21598
Install updates from vendor's website.
libde265 - update to 1.0.10
libde265-0 (Ubuntu package) - addressed in versions Ubuntu Pro, 1.0.4-1ubuntu0.1
libde265-0 (Ubuntu package) - addressed in versions Ubuntu Pro, 1.0.4-1ubuntu0.1