SB2021011906 - Denial of service in GNU C Library
Published: January 19, 2021
Security Bulletin ID
SB2021011906
Severity
Medium
Patch available
NO
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) Reachable Assertion (CVE-ID: CVE-2020-29562)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when converting UCS4 text containing an irreversible character in the iconv function in the GNU C Library (aka glibc or libc6). A remote attacker can pass specially crafted data to the library, trigger an assertion failure and preform a denial of service attack.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.