Use of Uninitialized Variable in golang (Red Hat package) - CVE-2024-9355
Published: October 3, 2024
Vulnerability identifier: #VU98022
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-9355
CWE-ID: CWE-457
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Red Hat Inc.
Affected software:
golang (Red Hat package)
golang (Red Hat package)
Detailed vulnerability description
The vulnerability allows a remote attacker to weaken TLS encryption.
The vulnerability exists due to an uninitialized buffer length variable in the CGO bindings that intermittently return a zeroed buffer from (*boringHMAC).Sum() in FIPS mode. A remote attacker can randomly cause an uninitialized buffer length variable with a zeroed buffer to be returned in FIPS mode and weaken TLS security.
How to mitigate CVE-2024-9355
Install updates from vendor's website.