Bug 53894 - apache2: Multiple issues (5.0)
apache2: 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
Philipp Hahn
:
Depends on:
Blocks:
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Reported: 2021-10-12 16:51 CEST by Quality Assurance
Modified: 2021-10-14 12:37 CEST (History)
0 users

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What kind of report is it?: Security Issue
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Max CVSS v3 score: 9.0 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)


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Description Quality Assurance univentionstaff 2021-10-12 16:51:12 CEST
New Debian apache2 2.4.38-3+deb10u6 fixes:
This update addresses the following issues:
* NULL pointer dereference via malformed requests (CVE-2021-34798)
* mod_proxy_uwsgi: out-of-bounds read via a crafted request uri-path  (CVE-2021-36160)
* out-of-bounds write in ap_escape_quotes() via malicious input  (CVE-2021-39275)
* mod_proxy: SSRF via a crafted request uri-path containing "unix:"  (CVE-2021-40438)
Comment 1 Quality Assurance univentionstaff 2021-10-12 17:06:37 CEST
--- mirror/ftp/pool/main/a/apache2/apache2_2.4.38-3+deb10u5A~5.0.0.202107120954.dsc
+++ apt/ucs_5.0-0-errata5.0-0/source/apache2_2.4.38-3+deb10u6.dsc
@@ -1,7 +1,12 @@
-2.4.38-3+deb10u5A~5.0.0.202107120954 [Mon, 12 Jul 2021 09:54:54 +0200] Univention builddaemon <buildd@univention.de>:
+2.4.38-3+deb10u6 [Thu, 30 Sep 2021 05:50:49 +0200] Yadd <yadd@debian.org>:
 
-  * UCS auto build. The following patches have been applied to the original source package
-    20-no-proxy
+  [ Yadd, Moritz Muehlenhoff ]
+  * Initialize the request fields on read failure to avoid NULLs
+    (Closes: CVE-2021-34798)
+  * mod_proxy_uwsgi: Fix PATH_INFO setting for generic worker
+    (Closes: CVE-2021-36160)
+  * Fix ap_escape_quotes with pre-escaped quotes (Closes: CVE-2021-39275)
+  * Sanity checks on the configured UDS path (Closes: CVE-2021-40438)
 
 2.4.38-3+deb10u5 [Thu, 10 Jun 2021 12:13:06 +0200] Yadd <yadd@debian.org>:
 

<http://piuparts.knut.univention.de/5.0-0/#5462403678322729079>
Comment 2 Philipp Hahn univentionstaff 2021-10-13 07:13:27 CEST
REOPEN: Missing patch 20-no-proxy
Comment 3 Philipp Hahn univentionstaff 2021-10-13 07:13:46 CEST
Package: apache2
Version: 2.4.38-3+deb10u6A~5.0.0.202110130658
Branch: ucs_5.0-0
Scope: errata5.0-0
Comment 4 Quality Assurance univentionstaff 2021-10-13 07:14:32 CEST
--- mirror/ftp/pool/main/a/apache2/apache2_2.4.38-3+deb10u5A~5.0.0.202107120954.dsc
+++ apt/ucs_5.0-0-errata5.0-0/source/apache2_2.4.38-3+deb10u6A~5.0.0.202110130658.dsc
@@ -1,7 +1,17 @@
-2.4.38-3+deb10u5A~5.0.0.202107120954 [Mon, 12 Jul 2021 09:54:54 +0200] Univention builddaemon <buildd@univention.de>:
+2.4.38-3+deb10u6A~5.0.0.202110130658 [Wed, 13 Oct 2021 06:58:04 +0200] Univention builddaemon <buildd@univention.de>:
 
   * UCS auto build. The following patches have been applied to the original source package
     20-no-proxy
+
+2.4.38-3+deb10u6 [Thu, 30 Sep 2021 05:50:49 +0200] Yadd <yadd@debian.org>:
+
+  [ Yadd, Moritz Muehlenhoff ]
+  * Initialize the request fields on read failure to avoid NULLs
+    (Closes: CVE-2021-34798)
+  * mod_proxy_uwsgi: Fix PATH_INFO setting for generic worker
+    (Closes: CVE-2021-36160)
+  * Fix ap_escape_quotes with pre-escaped quotes (Closes: CVE-2021-39275)
+  * Sanity checks on the configured UDS path (Closes: CVE-2021-40438)
 
 2.4.38-3+deb10u5 [Thu, 10 Jun 2021 12:13:06 +0200] Yadd <yadd@debian.org>:
 

<http://piuparts.knut.univention.de/5.0-0/#6049288803626639878>
Comment 5 Philipp Hahn univentionstaff 2021-10-13 07:16:55 CEST
OK: yaml
OK: announce_errata
OK: patch
OK: piuparts

[5.0-0] 377c1a445d Bug #53894: apache2 2.4.38-3+deb10u6A~5.0.0.202110130658
 doc/errata/staging/apache2.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

[5.0-0] 6ac0face34 Bug #53894: apache2 2.4.38-3+deb10u6
 doc/errata/staging/apache2.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

[5.0-0] bd1c42338d Bug #53894: apache2 2.4.38-3+deb10u6
 doc/errata/staging/apache2.yaml | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
Comment 7 Philipp Hahn univentionstaff 2021-10-14 12:37:23 CEST
(In reply to Julia Bremer from comment #6)
> <https://errata.software-univention.de/#/?erratum=5.0x117>

Possible regression with `ProxyPass`: <https://bz.apache.org/bugzilla/show_bug.cgi?id=65616> respectively <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=995368#48>

At least 'mailman3-web' is affected <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=996105>