SB2021111049 - Red Hat Enterprise Linux 8 update for gcc
Published: November 10, 2021
Security Bulletin ID
SB2021111049
CSH Severity
Low
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 vulnerability.
1) Integer overflow (CVE-ID: CVE-2018-20673)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer overflow (for "Create an array for saving the template argument values") in the demangle_template function in cplus-dem.c in GNU libiberty. A remote attacker can supply a specially crafted ELF file, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.