Bug 53469 - isc-dhcp: Multiple issues (5.0)
isc-dhcp: Multiple issues (5.0)
Status: CLOSED FIXED
Product: UCS
Classification: Unclassified
Component: Security updates
UCS 5.0
All Linux
: P3 normal (vote)
: UCS 5.0-0-errata
Assigned To: Quality Assurance
Erik Damrose
:
Depends on:
Blocks:
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Reported: 2021-06-21 09:52 CEST by Quality Assurance
Modified: 2021-06-23 15:55 CEST (History)
0 users

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Max CVSS v3 score: 8.8 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)


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Description Quality Assurance univentionstaff 2021-06-21 09:52:22 CEST
New Debian isc-dhcp 4.4.1-2+deb10u1A~5.0.0.202106210952 fixes:
This update addresses the following issue:
* stack-based buffer overflow when parsing statements with colon-separated  hex digits in config or lease files in dhcpd and dhclient (CVE-2021-25217)
Comment 1 Quality Assurance univentionstaff 2021-06-21 11:00:19 CEST
--- mirror/ftp/pool/main/i/isc-dhcp/isc-dhcp_4.4.1-2A~5.0.0.202105041300.dsc
+++ apt/ucs_5.0-0-errata5.0-0/source/isc-dhcp_4.4.1-2+deb10u1A~5.0.0.202106210952.dsc
@@ -1,4 +1,4 @@
-4.4.1-2A~5.0.0.202105041300 [Tue, 04 May 2021 13:00:40 +0200] Univention builddaemon <buildd@univention.de>:
+4.4.1-2+deb10u1A~5.0.0.202106210952 [Mon, 21 Jun 2021 09:52:57 +0200] Univention builddaemon <buildd@univention.de>:
 
   * UCS auto build. The following patches have been applied to the original source package
     10_fix_28139_ranges
@@ -9,6 +9,13 @@
     30_policy
     30_policy
 
+4.4.1-2+deb10u1 [Thu, 03 Jun 2021 12:59:09 +0200] Salvatore Bonaccorso <carnil@debian.org>:
+
+  * Non-maintainer upload.
+  * A buffer overrun in lease file parsing code can be used to exploit a
+    common vulnerability shared by dhcpd and dhclient (CVE-2021-25217)
+    (Closes: #989157)
+
 4.4.1-2 [Tue, 11 Dec 2018 03:55:12 +0000] Michael Gilbert <mgilbert@debian.org>:
 
   * Set initial address to 0.0.0.0 on hurd (closes: #875566).

<http://piuparts.knut.univention.de/5.0-0/#1544773028057619236>
Comment 2 Erik Damrose univentionstaff 2021-06-23 09:40:26 CEST
OK: yaml
OK: announce_errata
OK: patch
OK: piuparts

[5.0-0] 7f6ec4e96b Bug #53469: isc-dhcp 4.4.1-2+deb10u1A~5.0.0.202106210952
 doc/errata/staging/isc-dhcp.yaml | 13 +++++++++++++
 1 file changed, 13 insertions(+)
Comment 3 Erik Damrose univentionstaff 2021-06-23 15:55:52 CEST
<https://errata.software-univention.de/#/?erratum=5.0x16>