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Package "gnutls28"

Name: gnutls28

Description:

This package is just an umbrella for a group of other packages, it has no description.
Description samples from packages in group:

  • GNU TLS library - documentation and examples
  • GNU TLS library - DANE security support
  • GNU TLS library - OpenSSL wrapper
  • GNU TLS library - development files
Latest version: 3.8.9-3ubuntu2.2
Release: questing (25.10)
Level: security
Repository: main

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Other versions of "gnutls28" in Questing

Repository Area Version
base main 3.8.9-3ubuntu2
base universe 3.8.9-3ubuntu2
security universe 3.8.9-3ubuntu2.2
updates main 3.8.9-3ubuntu2.2
updates universe 3.8.9-3ubuntu2.2

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Changelog

Version: 3.8.9-3ubuntu2.2 2026-05-20 14:07:37 UTC

  gnutls28 (3.8.9-3ubuntu2.2) questing-security; urgency=medium

  * SECURITY UPDATE: buffer overflow in DTLS handshake fragment reassembly
    - debian/patches/CVE-2026-33846-pre1.patch: buffers: shorten
      merge_handshake_packet using recv_buf in lib/buffers.c.
    - debian/patches/CVE-2026-33846.patch: buffers: add more checks to DTLS
      reassembly in lib/buffers.c.
    - CVE-2026-33846
  * SECURITY UPDATE: DTLS packets sequence number ordering issue
    - debian/patches/CVE-2026-42009-pre1.patch: buffers: match DTLS datagrams by
      sequence number in lib/buffers.c.
    - debian/patches/CVE-2026-42009-1.patch: lib/buffers: ensure packets have
      differing sequence numbers in lib/buffers.c.
    - debian/patches/CVE-2026-42009-2.patch: buffers: fix handshake_compare when
      sequence numbers match in lib/buffers.c.
    - CVE-2026-42009
  * SECURITY UPDATE: OOB read via malformed fragments with zero length and
    non-zero offset
    - debian/patches/CVE-2026-33845-pre1.patch: buffers: rename a variable in
      parse_handshake_header in lib/buffers.c.
    - debian/patches/CVE-2026-33845.patch: buffers: switch from end_offset over
      to frag_length in lib/buffers.c, lib/gnutls_int.h.
    - debian/patches/CVE-2026-33845-2.patch: buffers: simplify and tighten
      parse_handshake_header checks in lib/buffers.c.
    - CVE-2026-33845
  * SECURITY UPDATE: malformed OCSP response issue
    - debian/patches/CVE-2026-3832.patch: cert-session: fix multi-entry OCSP
      revocation bypass in lib/cert-session.c.
    - CVE-2026-3832
  * SECURITY UPDATE: policy bypass via x509 case-sensitive comparisons
    - debian/patches/CVE-2026-3833.patch: x509/name-constraints: compare domain
      names case-insensitive in lib/x509/name_constraints.c.
    - CVE-2026-3833
  * SECURITY UPDATE: permitted name constrains were incorrectly ignored
    - debian/patches/CVE-2026-42011.patch: x509/name_constraints: fix
      intersecting empty constraints in lib/x509/name_constraints.c.
    - CVE-2026-42011
  * SECURITY UPDATE:
    - debian/patches/CVE-2026-42010.patch: lib/auth/rsa_psk: fix binary PSK
      identity lookup in lib/auth/rsa_psk.c.
    - CVE-2026-42010
  * SECURITY UPDATE: incorrect username parsing with NUL characters
    - debian/patches/CVE-2026-5260-1.patch: lib/auth/rsa: check that ciphertext
      matches the modulus size in lib/auth/rsa.c, lib/auth/rsa_psk.c.
    - debian/patches/CVE-2026-5260-2.patch: lib/pkcs11_privkey: guard against
      overreading on short ciphertexts in lib/pkcs11_privkey.c.
    - CVE-2026-5260
  * SECURITY UPDATE:
    - debian/patches/CVE-2026-42012-pre1.patch: x509/hostname-verify: refactor
      and simplify CN fallback logic in lib/x509/hostname-verify.c.
    - debian/patches/CVE-2026-42012-pre2.patch: x509: add bare-bones awareness
      of SRV virtual SAN in lib/includes/gnutls/gnutls.h.in, lib/x509/common.h,
      lib/x509/name_constraints.c, lib/x509/output.c, lib/x509/virt-san.c,
      lib/x509/x509.c.
    - debian/patches/CVE-2026-42012.patch: x509/hostname-verify: make URI/SRV
      SAN preclude CN fallback in lib/x509/hostname-verify.c.
    - CVE-2026-42012
  * SECURITY UPDATE: incorrect URI or SRV Subject Alternative Names checking
    - debian/patches/CVE-2026-42013-pre1.patch: x509/email-verify: call
      fallback DN fallback in lib/x509/email-verify.c.
    - debian/patches/CVE-2026-42013.patch: x509: prevent fallback on oversized
      SAN in lib/x509/email-verify.c, lib/x509/hostname-verify.c.
    - CVE-2026-42013
  * SECURITY UPDATE: UaF when changing the Security Officer PIN
    - debian/patches/CVE-2026-42014.patch: pkcs11_write: fix UAF and leak in
      gnutls_pkcs11_token_set_pin in lib/pkcs11_write.c.
    - CVE-2026-42014
  * SECURITY UPDATE: buffer overflow when appending to a PKCS#12 bag
    - debian/patches/CVE-2026-42015.patch: x509/pkcs12_bag: fix off-by-one in
      bag element bounds check in lib/x509/pkcs12_bag.c.
    - CVE-2026-42015
  * SECURITY UPDATE: non constant-time PKCS#7 padding check
    - debian/patches/CVE-2026-5419.patch: gnutls_cipher_decrypt3: make PKCS#7
      unpadding branch free in lib/crypto-api.c, lib/libgnutls.map,
      tests/Makefile.am, tests/pkcs7-pad.c.
    - debian/patches/CVE-2026-5419-2.patch: _gnutls_pkcs7_unpad: add missing
      declaration in lib/crypto-api.c.
    - CVE-2026-5419

 -- Marc Deslauriers <email address hidden> Fri, 08 May 2026 11:40:52 -0400
Source diff to previous version
CVE-2026-33846 A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in merge_handshake_packet() w
CVE-2026-42009 A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The com
CVE-2026-33845 A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reass
CVE-2026-3832 A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (
CVE-2026-3833 A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of `nameConstraints` labels, specifically fo
CVE-2026-42011 A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authoriti
CVE-2026-42010 A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL ch

Version: 3.8.9-3ubuntu2.1 2026-02-16 16:07:57 UTC

  gnutls28 (3.8.9-3ubuntu2.1) questing-security; urgency=medium

  * SECURITY UPDATE: DoS via malicious certificates
    - debian/patches/CVE-2025-14831-*.patch: rework processing algorithms
      to exhibit better performance characteristics in
      lib/x509/name_constraints.c, tests/name-constraints-ip.c.
    - CVE-2025-14831
  * SECURITY UPDATE: stack overflow via long token label
    - debian/patches/CVE-2025-9820.patch: avoid stack overwrite when
      initializing a token in lib/pkcs11_write.c, tests/Makefile.am,
      tests/pkcs11/long-label.c.
    - CVE-2025-9820

 -- Marc Deslauriers <email address hidden> Tue, 10 Feb 2026 09:22:00 -0500
CVE-2025-14831 A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via
CVE-2025-9820 A flaw was found in the GnuTLS library, specifically in the gnutls_pkcs11_token_init() function that handles PKCS#11 token initialization. When a tok


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