PT-2022-4529 · Sonicwall · Sonicos

Published 2022-01-05 · Updated 2022-01-19 · CVE-2021-20048

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions SonicOS (affected versions not specified)

Description A Stack-based buffer overflow in the SonicOS SessionID HTTP response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. The issue is related to the SonicOS Gen 5, Gen 6, and Gen 7 firmware versions.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

BDU:2022-05398

CVE-2021-20048

Affected Products

Sonicos

References · 5

• https://osv.dev/vulnerability/CVE-2021-20048 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20048 · Security Note
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0028 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-05398 · Security Note
• https://cybersecurity-help.cz/vdb/SB2022010525 · Note