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Fedora Update Notification
FEDORA-2014-7071
2014-06-05 03:32:42
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Name : chkrootkit
Product : Fedora 20
Version : 0.49
Release : 9.fc20
URL : http://www.chkrootkit.org
Summary : Tool to locally check for signs of a rootkit
Description :
chkrootkit is a tool to locally check for signs of a rootkit.
It contains:
* chkrootkit: shell script that checks system binaries for
rootkit modification.
* ifpromisc: checks if the network interface is in promiscuous mode.
* chklastlog: checks for lastlog deletions.
* chkwtmp: checks for wtmp deletions.
* chkproc: checks for signs of LKM trojans.
* chkdirs: checks for signs of LKM trojans.
* strings: quick and dirty strings replacement.
* chkutmp: checks for utmp deletions.
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Update Information:
A quoting issue was found in chkrootkit which would lead to a file in /tmp/ being executed, if /tmp/ was mounted without the noexec option. chkrootkit is typically run as the root user. A local attacker could use this flaw to escalate their privileges.
The problematic part was:
file_port=$file_port $i
Which is changed to file_port=”$file_port $i” to fix the issue. From the Debian diff:
— chkrootkit-0.49.orig/debian/patches/CVE-2014-0476.patch
+++ chkrootkit-0.49/debian/patches/CVE-2014-0476.patch
@@ -0,0 +1,13 @@
+Index: chkrootkit/chkrootkit
+===================================================================
+— chkrootkit.orig/chkrootkit
++++ chkrootkit/chkrootkit
+@@ -117,7 +117,7 @@ slapper (){
+ fi
+ for i in ${SLAPPER_FILES}; do
+ if [ -f ${i} ]; then
+- file_port=$file_port $i
++ file_port=”$file_port $i”
+ STATUS=1
+ fi
+ done
Acknowledgements:
Red Hat would like to thank Thomas Stangner for reporting this issue.
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ChangeLog:
* Wed Jun 4 2014 Jon Ciesla <limburgher@gmail.com> – 0.49-9
– Patch for CVE-2014-0476, BZ 1104456, 11044567.
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References:
[ 1 ] Bug #1104456 – CVE-2014-0476 chkrootkit: local privilege escalation [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1104456
[ 2 ] Bug #1104457 – CVE-2014-0476 chkrootkit: local privilege escalation [epel-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1104457
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This update can be installed with the “yum” update program. Use
su -c ‘yum update chkrootkit’ at the command line.
For more information, refer to “Managing Software with yum”,
available at http://docs.fedoraproject.org/yum/.
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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_______________________________________________
package-announce mailing list
package-announce@lists.fedoraproject.org
https://admin.fedoraproject.org/mailman/listinfo/package-announce
——————————————————————————–
Fedora Update Notification
FEDORA-2014-7090
2014-06-05 03:33:25
——————————————————————————–
Name : chkrootkit
Product : Fedora 19
Version : 0.49
Release : 9.fc19
URL : http://www.chkrootkit.org
Summary : Tool to locally check for signs of a rootkit
Description :
chkrootkit is a tool to locally check for signs of a rootkit.
It contains:
* chkrootkit: shell script that checks system binaries for
rootkit modification.
* ifpromisc: checks if the network interface is in promiscuous mode.
* chklastlog: checks for lastlog deletions.
* chkwtmp: checks for wtmp deletions.
* chkproc: checks for signs of LKM trojans.
* chkdirs: checks for signs of LKM trojans.
* strings: quick and dirty strings replacement.
* chkutmp: checks for utmp deletions.
——————————————————————————–
Update Information:
A quoting issue was found in chkrootkit which would lead to a file in /tmp/ being executed, if /tmp/ was mounted without the noexec option. chkrootkit is typically run as the root user. A local attacker could use this flaw to escalate their privileges.
The problematic part was:
file_port=$file_port $i
Which is changed to file_port=”$file_port $i” to fix the issue. From the Debian diff:
— chkrootkit-0.49.orig/debian/patches/CVE-2014-0476.patch
+++ chkrootkit-0.49/debian/patches/CVE-2014-0476.patch
@@ -0,0 +1,13 @@
+Index: chkrootkit/chkrootkit
+===================================================================
+— chkrootkit.orig/chkrootkit
++++ chkrootkit/chkrootkit
+@@ -117,7 +117,7 @@ slapper (){
+ fi
+ for i in ${SLAPPER_FILES}; do
+ if [ -f ${i} ]; then
+- file_port=$file_port $i
++ file_port=”$file_port $i”
+ STATUS=1
+ fi
+ done
Acknowledgements:
Red Hat would like to thank Thomas Stangner for reporting this issue.
——————————————————————————–
ChangeLog:
* Wed Jun 4 2014 Jon Ciesla <limburgher@gmail.com> – 0.49-9
– Patch for CVE-2014-0476, BZ 1104456, 11044567.
* Sat Aug 3 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> – 0.49-8
– Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
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References:
[ 1 ] Bug #1104456 – CVE-2014-0476 chkrootkit: local privilege escalation [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1104456
[ 2 ] Bug #1104457 – CVE-2014-0476 chkrootkit: local privilege escalation [epel-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1104457
——————————————————————————–
This update can be installed with the “yum” update program. Use
su -c ‘yum update chkrootkit’ at the command line.
For more information, refer to “Managing Software with yum”,
available at http://docs.fedoraproject.org/yum/.
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
——————————————————————————–
_______________________________________________
package-announce mailing list
package-announce@lists.fedoraproject.org
https://admin.fedoraproject.org/mailman/listinfo/package-announce
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