UbuntuUpdates.org

Package "libunbound8"

Name: libunbound8

Description:

library implementing DNS resolution and validation
Latest version: 1.13.1-1ubuntu5.11
Release: jammy (22.04)
Level: security
Repository: main
Head package: unbound
Homepage: https://www.unbound.net/

Links

All versions of this package
Bug fixes

List of files in package
Repository home page

Download "libunbound8"

32-bit deb package
64-bit deb package
APT INSTALL

Other versions of "libunbound8" in Jammy

Repository Area Version
base main 1.13.1-1ubuntu5
updates main 1.13.1-1ubuntu5.11

Changelog

Version: 1.13.1-1ubuntu5.11 2025-07-24 19:09:39 UTC

  unbound (1.13.1-1ubuntu5.11) jammy-security; urgency=medium

  * SECURITY UPDATE: Rebirthday Attack cache poisoning issue
    - debian/patches/CVE-2025-5994.patch: Fix issue in
      edns-subnet/subnetmod.c, edns-subnet/subnetmod.h.
    - CVE-2025-5994

 -- Marc Deslauriers <email address hidden> Fri, 18 Jul 2025 13:40:33 -0400
Source diff to previous version
CVE-2025-5994 A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet (ECS)

Version: 1.13.1-1ubuntu5.8 2024-10-22 11:07:00 UTC

  unbound (1.13.1-1ubuntu5.8) jammy-security; urgency=medium

  * SECURITY UPDATE: denial of service via large RRsets compression
    - debian/patches/CVE-2024-8508.patch: limit name compression
      calculations per packet to avoid CPU lockup in util/data/msgencode.c
    - CVE-2024-8508

 -- Vyom Yadav <email address hidden> Thu, 17 Oct 2024 11:28:18 +0530
Source diff to previous version
CVE-2024-8508 NLnet Labs Unbound up to and including version 1.21.0 contains a vulnerability when handling replies with very large RRsets that it needs to perform

Version: 1.13.1-1ubuntu5.7 2024-09-11 08:06:54 UTC

  unbound (1.13.1-1ubuntu5.7) jammy-security; urgency=medium

  * SECURITY UPDATE: null pointer dereference
    - debian/patches/CVE-2024-43167-1.patch: fix null pointer
      dereference issue in function ub_ctx_set_fwd of file
      libunbound/libunbound.c
    - debian/patches/CVE-2024-43167-2.patch: fix to print a parse
      error when config is read with no name for a forward-zone, stub-
      zone or view.
    - CVE-2024-43167
  * SECURITY UPDATE: heap buffer overflow
    - debian/patches/CVE-2024-43168-1.patch: fix heap-buffer-overflow
      issue in function cfg_mark_ports of file util/config_file.c
    - debian/patches/CVE-2024-43168-2.patch: adjust error text and
      disallow negative ports in other parts of cfg_mark_ports.
    - CVE-2024-43168

 -- Bruce Cable <email address hidden> Thu, 05 Sep 2024 16:35:49 +1000
Source diff to previous version
CVE-2024-43167 A NULL pointer dereference flaw was found in the ub_ctx_set_fwd function in Unbound. This issue could allow an attacker who can invoke specific seque
CVE-2024-43168 A heap-buffer-overflow flaw was found in the cfg_mark_ports function within Unbound's config_file.c, which can lead to memory corruption. This issue

Version: 1.13.1-1ubuntu5.5 2024-05-28 14:07:11 UTC

  unbound (1.13.1-1ubuntu5.5) jammy-security; urgency=medium

  * SECURITY UPDATE: Unbound could be used to take part in a DoS attack
    - debian/patches/CVE-2024-33655.patch: fix for the DNSBomb
      vulnerability in doc/example.conf.in, doc/unbound.conf.5.in,
      services/cache/infra.c, services/cache/infra.h, services/mesh.c,
      testdata/*, util/config_file.c, util/config_file.h,
      util/configlexer.lex, util/configparser.y.
    - CVE-2024-33655

 -- Marc Deslauriers <email address hidden> Wed, 15 May 2024 13:34:34 +0200
Source diff to previous version

Version: 1.13.1-1ubuntu5.4 2024-02-28 15:07:03 UTC

  unbound (1.13.1-1ubuntu5.4) jammy-security; urgency=medium

  * SECURITY UPDATE: Denial of service issues via DNSSEC responses
    - debian/patches/CVE-2023-50387_CVE-2023-50868_1.12.0-1.13.1.patch:
      patch obtained from Debian's 1.13.1-1+deb11u2 package, thanks to
      Salvatore Bonaccorso.
    - CVE-2023-50387
    - CVE-2023-50868

 -- Marc Deslauriers <email address hidden> Tue, 27 Feb 2024 16:53:18 -0500
CVE-2023-50387 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU
CVE-2023-50868 The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of se


About   -   Send Feedback to @ubuntu_updates