SB20260731121 - Red Hat Enterprise Linux 10 update for golang-github-openprinting-ipp-usb
Published: July 31, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Double free (CVE-ID: CVE-2026-33811)
CWE-ID: CWE-415 - Double Free
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to double free in net.LookupCNAME and Resolver.LookupCNAME when processing a very long CNAME response with the cgo DNS resolver. A remote attacker can send a specially crafted DNS response to cause a denial of service.
2) Resource exhaustion (CVE-ID: CVE-2026-27145)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in crypto/x509 certificate hostname verification when processing certificates with a large DNS subject alternative name list. A remote attacker can present a specially crafted certificate to cause a denial of service.
The excessive verification cost occurs before the certificate chain is built, so the overhead is incurred even for untrusted certificates.
Remediation
Install update from vendor's website.