Packages
- gnutls28 - GNU TLS library
Details
It was discovered that GnuTLS incorrectly handled exporting Subject
Alternative Name (SAN) entries containing an otherName. A remote attacker
could use this issue to cause GnuTLS to crash, resulting in a denial of
service, or possibly execute arbitrary code. (CVE-2025-32988)
It was discovered that GnuTLS incorrectly handled parsing the Certificate
Transparency (CT) Signed Certificate Timestamp (SCT) extension. A remote
attacker could use this issue to cause GnuTLS to crash, resulting in a
denial of service, or possibly obtain sensitive information.
(CVE-2025-32989)
It was discovered that the GnuTLS certtool utility incorrectly handled
parsing certain template files. An attacker could use this issue to cause
GnuTLS to crash, resulting in a denial of service, or possibly execute
arbitrary code. (
It was discovered that GnuTLS incorrectly handled exporting Subject
Alternative Name (SAN) entries containing an otherName. A remote attacker
could use this issue to cause GnuTLS to crash, resulting in a denial of
service, or possibly execute arbitrary code. (CVE-2025-32988)
It was discovered that GnuTLS incorrectly handled parsing the Certificate
Transparency (CT) Signed Certificate Timestamp (SCT) extension. A remote
attacker could use this issue to cause GnuTLS to crash, resulting in a
denial of service, or possibly obtain sensitive information.
(CVE-2025-32989)
It was discovered that the GnuTLS certtool utility incorrectly handled
parsing certain template files. An attacker could use this issue to cause
GnuTLS to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2025-32990)
Stefan Bühler discovered that GnuTLS incorrectly handled parsing certain
template files. An attacker could possibly use this issue to cause GnuTLS
to crash, resulting in a denial of service. (CVE-2025-6395)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 25.04 plucky | libgnutls30t64 – 3.8.9-2ubuntu3.1 | ||
| 24.04 noble | libgnutls30t64 – 3.8.3-1.1ubuntu3.4 | ||
| 22.04 jammy | libgnutls30 – 3.7.3-4ubuntu1.7 | ||
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