PT-2020-6623 · Faad2+4 · Faad2+4

Seviezhou · Published 2020-08-30 · Updated 2023-08-29 · CVE-2021-32277

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions faad2 versions 2.10.0 and earlier

Description A heap-buffer-overflow issue exists in the sbr qmf analysis 32 function located in sbr qmf.c. This allows an attacker to cause code execution. The vulnerability is related to a buffer overflow, which can be exploited by a remote attacker to access confidential data, compromise data integrity, and cause a denial of service.

Recommendations For faad2 versions 2.10.0 and earlier, as a temporary workaround, consider disabling the sbr qmf analysis 32 function until a patch is available. 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-2023-1533

ALT-PU-2023-1579

BDU:2022-01666

CVE-2021-32277

DLA-2792-1

DSA-5109-1

USN-6313-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Ubuntu

Faad2

References · 27

• 🔥 https://github.com/knik0/faad2/issues/59 · Exploit
• 🔥 https://github.com/TeamSeri0us/pocs/blob/master/faad/global-buffer-overflow%40ps_mix_phase.md · Exploit
• 🔥 https://github.com/TeamSeri0us/pocs/tree/master/faad · Exploit
• https://ubuntu.com/security/CVE-2021-32278 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-32276 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-32277 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-32277 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-32277 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5109-1 · Vendor Advisory
• https://debian.org/security/2022/dsa-5109 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-32272 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-32277 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-32277 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20220829SE16 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-38857 · Vendor Advisory