Out-of-bounds read in SQLite - CVE-2021-31239

Vulnerability identifier: #VU77807

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-31239

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition in ext/misc/appendvfs.c. A local user can trigger an out-of-bounds read error and crash the database.

SQLite
Gentoo Linux
Fedora
IBM Data Risk Manager
dev-db/sqlite
chromium
RUGGEDCOM CROSSBOW

Install updates from vendor's website.

SQLite - update to 3.36.0
IBM Data Risk Manager - update to 2.0.6.18
dev-db/sqlite - update to 3.42.0
RUGGEDCOM CROSSBOW - update to 5.4
chromium - addressed in versions 113.0.5672.126-1.el7, 113.0.5672.126-1.el8, 113.0.5672.126-1.el9, 113.0.5672.126-1.fc37, 113.0.5672.126-1.fc38

• https://github.com/Tsiming/Vulnerabilities/blob/main/SQLite/CVE-2021-31239
• https://www.sqlite.org/forum/forumpost/d9fce1a89b
• https://www.sqlite.org/src/info/04f6439f4d9b9b1f

• Denial of service in SQLite
• Multiple vulnerabilities in Siemens RUGGEDCOM CROSSBOW
• Fedora EPEL 7 update for chromium
• Fedora EPEL 8 update for chromium
• Fedora 38 update for chromium
• Fedora EPEL 9 update for chromium
• Fedora 37 update for chromium
• Multiple vulnerabilities in IBM Data Risk Manager
• Gentoo update for SQLite