SB2021083025 - Ubuntu update for apr
Published: August 30, 2021 Updated: February 2, 2023
Security Bulletin ID
SB2021083025
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2021-35940)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a boundary condition in the "apr_time_exp*()" functions. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
Note, the vulnerability exists due to a missing patch for #VU9477 (CVE-2017-12613).
Remediation
Install update from vendor's website.