Bug 57081 - unbound: Multiple issues (5.0)
unbound: Multiple issues (5.0)
Status: CLOSED FIXED
Product: UCS
Classification: Unclassified
Component: Security updates
UCS 5.0
All Linux
: P3 normal (vote)
: UCS 5.0-6-errata
Assigned To: Quality Assurance
Philipp Hahn
:
Depends on:
Blocks:
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Reported: 2024-02-23 11:02 CET by Quality Assurance
Modified: 2024-02-28 13:17 CET (History)
1 user (show)

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Max CVSS v3 score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)


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Description Quality Assurance univentionstaff 2024-02-23 11:02:28 CET
New Debian unbound 1.9.0-2+deb10u4 fixes:
This update addresses the following issues:
1.9.0-2+deb10u4 (Wed, 21 Feb 2024 12:00:23 +0100)
* Non-maintainer upload by the LTS team.
* Fix CVE-2023-50387 and CVE-2023-50868: Two vulnerabilities were discovered  in unbound, a validating, recursive, caching DNS resolver. Specially  crafted DNSSEC answers could lead unbound down a very CPU intensive and  time costly DNSSEC (CVE-2023-50387) or NSEC3 hash (CVE-2023-50868)  validation path, resulting in denial of service.
Comment 1 Quality Assurance univentionstaff 2024-02-23 12:00:19 CET
--- mirror/ftp/pool/main/u/unbound/unbound_1.9.0-2+deb10u3.dsc
+++ apt/ucs_5.0-0-errata5.0-6/source/unbound_1.9.0-2+deb10u4.dsc
@@ -1,3 +1,12 @@
+1.9.0-2+deb10u4 [Wed, 21 Feb 2024 12:00:23 +0100] Markus Koschany <apo@debian.org>:
+
+  * Non-maintainer upload by the LTS team.
+  * Fix CVE-2023-50387 and CVE-2023-50868:
+    Two vulnerabilities were discovered in unbound, a validating, recursive,
+    caching DNS resolver. Specially crafted DNSSEC answers could lead unbound
+    down a very CPU intensive and time costly DNSSEC (CVE-2023-50387) or NSEC3
+    hash (CVE-2023-50868) validation path, resulting in denial of service.
+
 1.9.0-2+deb10u3 [Wed, 29 Mar 2023 10:11:30 +0200] Markus Koschany <apo@debian.org>:
 
   * Non-maintainer upload by the LTS team.

<http://piuparts.knut.univention.de/5.0-6/#8485790673948156955>
Comment 2 Philipp Hahn univentionstaff 2024-02-26 11:48:24 CET
OK: bug
OK: yaml
OK: announce_errata
OK: patch
OK: piuparts

[5.0-6] c6b96f7eef Bug #57081: unbound 1.9.0-2+deb10u4
 doc/errata/staging/unbound.yaml | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

[5.0-6] 0bdc7f8ec6 Bug #57081: unbound 1.9.0-2+deb10u4
 doc/errata/staging/unbound.yaml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)