Bug 51307 - exim4: Multiple issues (4.3)
exim4: Multiple issues (4.3)
Status: CLOSED FIXED
Product: UCS
Classification: Unclassified
Component: Security updates
UCS 4.3
All Linux
: P3 normal (vote)
: UCS 4.3-5-errata
Assigned To: Quality Assurance
Erik Damrose
:
Depends on:
Blocks:
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Reported: 2020-05-18 17:36 CEST by Quality Assurance
Modified: 2020-05-20 13:50 CEST (History)
0 users

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What kind of report is it?: Security Issue
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Max CVSS v3 score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)


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Description Quality Assurance univentionstaff 2020-05-18 17:36:10 CEST
New Debian exim4 4.89-2+deb9u7A~4.3.5.202005181736 fixes:
This update addresses the following issue:
* out-of-bounds read in the SPA authenticator can lead to SPA/NTLM  authentication bypass in auths/spa.c and auths/auth-spa.c (CVE-2020-12783)
Comment 1 Quality Assurance univentionstaff 2020-05-19 16:01:34 CEST
--- mirror/ftp/4.3/unmaintained/4.3-5/source/exim4_4.89-2+deb9u6A~4.3.0.201909091541.dsc
+++ apt/ucs_4.3-0-errata4.3-5/source/exim4_4.89-2+deb9u7A~4.3.5.202005181736.dsc
@@ -1,7 +1,12 @@
-4.89-2+deb9u6A~4.3.0.201909091541 [Mon, 09 Sep 2019 15:41:25 +0200] Univention builddaemon <buildd@univention.de>:
+4.89-2+deb9u7A~4.3.5.202005181736 [Mon, 18 May 2020 17:36:36 +0200] Univention builddaemon <buildd@univention.de>:
 
   * UCS auto build. The following patches have been applied to the original source package
     10_default-mta
+
+4.89-2+deb9u7 [Wed, 13 May 2020 18:18:26 +0200] Andreas Metzler <ametzler@debian.org>:
+
+  * Fix authentication bypass in SPA authenticator due to out-of-bound buffer
+    read. https://bugs.exim.org/show_bug.cgi?id=2571 CVE-2020-12783
 
 4.89-2+deb9u6 [Tue, 03 Sep 2019 20:01:38 +0200] Andreas Metzler <ametzler@debian.org>:
 

<http://10.200.17.11/4.3-5/#1311525619350231439>
Comment 2 Erik Damrose univentionstaff 2020-05-19 19:11:28 CEST
OK: yaml
OK: announce_errata
OK: patch
OK: piuparts

[4.3-5] 7555576075 Bug #51307: exim4 4.89-2+deb9u7A~4.3.5.202005181736
 doc/errata/staging/exim4.yaml | 13 +++++++++++++
 1 file changed, 13 insertions(+)
Comment 3 Arvid Requate univentionstaff 2020-05-20 13:50:05 CEST
<http://errata.software-univention.de/ucs/4.3/679.html>