Bug 46622 - util-linux: Multiple issues (4.3)
util-linux: Multiple issues (4.3)
Status: CLOSED FIXED
Product: UCS
Classification: Unclassified
Component: Security updates
UCS 4.3
All Linux
: P3 normal (vote)
: UCS 4.3-0-errata
Assigned To: Philipp Hahn
Arvid Requate
:
Depends on:
Blocks:
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Reported: 2018-03-13 16:39 CET by Philipp Hahn
Modified: 2018-05-16 17:04 CEST (History)
1 user (show)

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What kind of report is it?: Security Issue
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Max CVSS v3 score: 6.7 (CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H)


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Description Philipp Hahn univentionstaff 2018-03-13 16:39:13 CET
New Debian util-linux 2.29.2-1+deb9u1 fixes:
This update addresses the following issue:
* bash-completion for umount allows local users to gain privileges by
  embedding shell commands in a mountpoint name, which is mishandled during a
  umount command (within Bash) by a different user, as demonstrated by
  logging in as root and entering umount followed by a tab character for
  autocompletion. (CVE-2018-7738)

CVE-2018-7738 util-linux: Shell command injection in unescaped bash-completed mount point names
Comment 1 Philipp Hahn univentionstaff 2018-03-13 17:39:37 CET
[4.3-0] 51cecfadaf Bug #46622: util-linux_2.29.2-1+deb9u1
Comment 2 Quality Assurance univentionstaff 2018-05-04 16:44:01 CEST
--- mirror/ftp/4.3/unmaintained/4.3-0/source/util-linux_2.29.2-1.dsc
+++ apt/ucs_4.3-0-errata4.3-0/source/util-linux_2.29.2-1+deb9u1.dsc
@@ -1,3 +1,9 @@
+2.29.2-1+deb9u1 [Wed, 07 Mar 2018 19:29:09 +0100] Salvatore Bonaccorso <carnil@debian.org>:
+
+  * Non-maintainer upload by the Security Team.
+  * bash-completion: (umount) use findmnt, escape a space in paths
+    (CVE-2018-7738) (Closes: #892179)
+
 2.29.2-1 [Wed, 22 Mar 2017 10:43:33 +0100] Andreas Henriksson <andreas@fatal.se>:
 
   * New upstream release.
Comment 3 Arvid Requate univentionstaff 2018-05-15 11:47:55 CEST
* No UCS specific patches
* Comparison to previously shipped version ok
* Binary package update Ok
* Advisory Ok
Comment 4 Arvid Requate univentionstaff 2018-05-16 17:04:02 CEST
<http://errata.software-univention.de/ucs/4.3/74.html>