Fixes the following security issues:
GNUTLS-SA-2025-07-08-1 CVE-2025-32989
Severity Medium; Heap read buffer overflow
When an X.509 certificate contains an SCT (signed certificate timestamp)
extension and its length field is malformed, the library could read the memory
buffer past the boundary. The issue was reported in the issue tracker as
<https://gitlab.com/gnutls/gnutls/-/issues/1695>.
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GNUTLS-SA-2025-07-08-2 CVE-2025-32988
Severity Low; Memory corruption on error path
When any error occurs during exporting a certificate with an otherName in the
SAN (subject alternative name) extension, the library could potentially double
free the ASN.1 structure. The issue was reported in the issue tracker as
<https://gitlab.com/gnutls/gnutls/-/issues/1694>.
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GNUTLS-SA-2025-07-08-3 CVE-2025-32990
Severity Low; Heap write buffer overflow
When the certtool program is invoked with a template file with a number of
string pairs for a single keyword, a NULL pointer could be written past the
memory boundary. The issue was reported in the issue tracker as
<https://gitlab.com/gnutls/gnutls/-/issues/1696>.
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GNUTLS-SA-2025-07-08-4 CVE-2025-6395
Severity Medium; Denial of service
When a TLS 1.3 handshake involves a Hello Retry Request and the second
Client Hello omits the PSK which was present in the first Client Hello,
the GnuTLS server can dereference a NULL pointer. The issue was reported
in the issue tracker as <https://gitlab.com/gnutls/gnutls/-/issues/1718>.
https://lists.gnupg.org/pipermail/gnutls-help/2025-July/004883.html
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Peter Korsgaard
16d4159d44