Your message dated Sat, 09 Oct 2021 12:11:43 +0100
with message-id
<896b7609401ceb0e1c537222e26587ea2351415d.ca...@adam-barratt.org.uk>
and subject line Closing bugs for fixes included in the 10.11 point release
has caused the Debian Bug report #993898,
regarding buster-pu: package btrbk/0.27.1-1+deb10u1
to be marked as done.
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--
993898: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993898
Debian Bug Tracking System
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--- Begin Message ---
Package: release.debian.org
Severity: normal
Tags: buster
User: [email protected]
Usertags: pu
The attached debdiff for btrbk fixes CVE-2021-38173 in Buster.
This CVE is marked as no-dsa by the security team.
The same patch was already uploaded to unstable with version 0.27.1-2.
Thorsten
diff -Nru btrbk-0.27.1/debian/changelog btrbk-0.27.1/debian/changelog
--- btrbk-0.27.1/debian/changelog 2018-12-05 22:27:30.000000000 +0100
+++ btrbk-0.27.1/debian/changelog 2021-08-29 19:03:02.000000000 +0200
@@ -1,3 +1,12 @@
+btrbk (0.27.1-1+deb10u1) buster; urgency=high
+
+ * Non-maintainer upload by the LTS Team.
+ * CVE-2021-38173
+ fixes a security vulnerability which would have allowed for an
+ arbitrary code execution
+
+ -- Thorsten Alteholz <[email protected]> Sun, 29 Aug 2021 19:03:02 +0200
+
btrbk (0.27.1-1) unstable; urgency=medium
* New upstream release.
diff -Nru btrbk-0.27.1/debian/patches/CVE-2021-38173.patch
btrbk-0.27.1/debian/patches/CVE-2021-38173.patch
--- btrbk-0.27.1/debian/patches/CVE-2021-38173.patch 1970-01-01
01:00:00.000000000 +0100
+++ btrbk-0.27.1/debian/patches/CVE-2021-38173.patch 2021-08-29
19:03:02.000000000 +0200
@@ -0,0 +1,32 @@
+From 58212de771c381cd4fa05625927080bf264e9584 Mon Sep 17 00:00:00 2001
+From: Axel Burri <[email protected]>
+Date: Sun, 21 Mar 2021 12:53:22 +0100
+Subject: [PATCH] ssh_filter_btrbk.sh: fix alternation regex
+
+Security vulnerability fixed in alternation regex. Specialy crafted
+commands may be executed without being propely checked.
+
+Affects all versions >= btrbk-v0.23.0
+
+Regression from:
+
+ ccb5ed5e71 ssh_filter_btrbk: allow "realpath" and "cat /proc/self/mounts"
on targets
+
+Reported by: @protree (responsible disclosure)
+---
+ ssh_filter_btrbk.sh | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: btrbk-0.27.1/ssh_filter_btrbk.sh
+===================================================================
+--- btrbk-0.27.1.orig/ssh_filter_btrbk.sh 2021-08-30 15:04:39.595339393
+0200
++++ btrbk-0.27.1/ssh_filter_btrbk.sh 2021-08-30 15:04:39.591339393 +0200
+@@ -87,7 +87,7 @@
+ return 0
+ fi
+
+- exact_cmd_match="^${allow_exact_list}$";
++ exact_cmd_match="^(${allow_exact_list})$";
+ if [[ $SSH_ORIGINAL_COMMAND =~ $exact_cmd_match ]] ; then
+ return 0
+ fi
diff -Nru btrbk-0.27.1/debian/patches/series btrbk-0.27.1/debian/patches/series
--- btrbk-0.27.1/debian/patches/series 1970-01-01 01:00:00.000000000 +0100
+++ btrbk-0.27.1/debian/patches/series 2021-08-29 19:03:02.000000000 +0200
@@ -0,0 +1 @@
+CVE-2021-38173.patch
--- End Message ---
--- Begin Message ---
Package: release.debian.org
Version: 10.11
Hi,
The updates relating to these bugs were included in this morning's
10.11 point release for buster.
Regards,
Adam
--- End Message ---
