PT-2021-6496 · Libde265+4 · Libde265+4

Leonzhao7 · Published 2020-02-28 · Updated 2024-01-30 · CVE-2020-21598

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions libde265 version 1.0.4

Description The issue is related to a heap buffer overflow in the ff hevc put unweighted pred 8 sse function. This can be exploited via a crafted file, potentially allowing a remote attacker to access confidential data, compromise data integrity, and cause a denial of service.

Recommendations For libde265 version 1.0.4, consider disabling the ff hevc put unweighted pred 8 sse function as a temporary workaround until a patch is available. Restrict access to crafted files that could exploit this issue to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ALT-PU-2020-1410

BDU:2022-01746

CVE-2020-21598

DLA-3240-1

DLA-3280-1

DSA-5346-1

MGASA-2023-0093

USN-6617-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Ubuntu

Libde265

References · 46

• 🔥 https://github.com/strukturag/libde265/issues/237 · Exploit
• https://ubuntu.com/security/CVE-2020-21598 · Vendor Advisory
• https://debian.org/lts/security/2022/dla-3240 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-21598 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-21600 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6617-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-21602 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2023-0093 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-21598 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-21598 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5346-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0303SE17MD · Vendor Advisory
• https://osv.dev/vulnerability/USN-6617-1 · Vendor Advisory
• https://debian.org/security/2023/dsa-5346 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3280-1 · Vendor Advisory