vulnerability
Red Hat: CVE-2025-32988: gnutls: Vulnerability in GnuTLS otherName SAN export (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:M/Au:N/C:N/I:P/A:C) | Jul 10, 2025 | Jul 11, 2025 | Jan 28, 2026 |
Severity
8
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:C)
Published
Jul 10, 2025
Added
Jul 11, 2025
Modified
Jan 28, 2026
Description
A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject Alternative Name (SAN) entries containing an otherName. If the type-id OID is invalid or malformed, GnuTLS will call asn1_delete_structure() on an ASN.1 node it does not own, leading to a double-free condition when the parent function or caller later attempts to free the same structure.
This vulnerability can be triggered using only public GnuTLS APIs and may result in denial of service or memory corruption, depending on allocator behavior.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-gnutlsredhat-upgrade-gnutls-credhat-upgrade-gnutls-c-debuginforedhat-upgrade-gnutls-daneredhat-upgrade-gnutls-dane-debuginforedhat-upgrade-gnutls-debuginforedhat-upgrade-gnutls-debugsourceredhat-upgrade-gnutls-develredhat-upgrade-gnutls-utilsredhat-upgrade-gnutls-utils-debuginfo
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