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author | Alex Legler <alex@a3li.li> | 2015-03-08 22:02:38 +0100 |
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committer | Alex Legler <alex@a3li.li> | 2015-03-08 22:02:38 +0100 |
commit | a24567fbc43f221b14e805f9bc0b7c6d16911c46 (patch) | |
tree | 910a04fe6ee560ac0eebac55f3cd2781c3519760 /glsa-200711-29.xml | |
download | glsa-a24567fbc43f221b14e805f9bc0b7c6d16911c46.tar.gz glsa-a24567fbc43f221b14e805f9bc0b7c6d16911c46.tar.bz2 glsa-a24567fbc43f221b14e805f9bc0b7c6d16911c46.zip |
Import existing advisories
Diffstat (limited to 'glsa-200711-29.xml')
-rw-r--r-- | glsa-200711-29.xml | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/glsa-200711-29.xml b/glsa-200711-29.xml new file mode 100644 index 00000000..aef528d6 --- /dev/null +++ b/glsa-200711-29.xml @@ -0,0 +1,80 @@ +<?xml version="1.0" encoding="utf-8"?> +<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> +<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> + +<glsa id="200711-29"> + <title>Samba: Execution of arbitrary code</title> + <synopsis> + Samba contains two buffer overflow vulnerabilities potentially resulting in + the execution of arbitrary code. + </synopsis> + <product type="ebuild">samba</product> + <announced>November 20, 2007</announced> + <revised>December 05, 2007: 03</revised> + <bug>197519</bug> + <access>remote</access> + <affected> + <package name="net-fs/samba" auto="yes" arch="*"> + <unaffected range="ge">3.0.27a</unaffected> + <vulnerable range="lt">3.0.27a</vulnerable> + </package> + </affected> + <background> + <p> + Samba is a suite of SMB and CIFS client/server programs for UNIX. + </p> + </background> + <description> + <p> + Two vulnerabilities have been reported in nmbd. Alin Rad Pop (Secunia + Research) discovered a boundary checking error in the + reply_netbios_packet() function which could lead to a stack-based + buffer overflow (CVE-2007-5398). The Samba developers discovered a + boundary error when processing GETDC logon requests also leading to a + buffer overflow (CVE-2007-4572). + </p> + </description> + <impact type="high"> + <p> + To exploit the first vulnerability, a remote unauthenticated attacker + could send specially crafted WINS "Name Registration" requests followed + by a WINS "Name Query" request. This might lead to execution of + arbitrary code with elevated privileges. Note that this vulnerability + is exploitable only when WINS server support is enabled in Samba. The + second vulnerability could be exploited by sending specially crafted + "GETDC" mailslot requests, but requires Samba to be configured as a + Primary or Backup Domain Controller. It is not believed the be + exploitable to execute arbitrary code. + </p> + </impact> + <workaround> + <p> + To work around the first vulnerability, disable WINS support in Samba + by setting "<i>wins support = no</i>" in the "global" section of your + smb.conf and restart Samba. + </p> + </workaround> + <resolution> + <p> + All Samba users should upgrade to the latest version: + </p> + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=net-fs/samba-3.0.27a"</code> + <p> + The first vulnerability (CVE-2007-5398) was already fixed in Samba + 3.0.26a-r2. + </p> + </resolution> + <references> + <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4572">CVE-2007-4572</uri> + <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5398">CVE-2007-5398</uri> + </references> + <metadata tag="submitter" timestamp="Sat, 03 Nov 2007 23:37:14 +0000"> + rbu + </metadata> + <metadata tag="bugReady" timestamp="Tue, 20 Nov 2007 21:13:02 +0000"> + p-y + </metadata> +</glsa> |