diff options
Diffstat (limited to 'xml/htdocs/security/en/glsa/glsa-200402-07.xml')
-rw-r--r-- | xml/htdocs/security/en/glsa/glsa-200402-07.xml | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/xml/htdocs/security/en/glsa/glsa-200402-07.xml b/xml/htdocs/security/en/glsa/glsa-200402-07.xml new file mode 100644 index 00000000..89904223 --- /dev/null +++ b/xml/htdocs/security/en/glsa/glsa-200402-07.xml @@ -0,0 +1,68 @@ +<?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="200402-07"> + <title>Clam Antivirus DoS vulnerability</title> + <synopsis> + Oliver Eikemeier has reported a vulnerability in Clam AV, which can be + exploited by a malformed uuencoded message causing a denial of service for + programs that rely on the clamav daemon, such as SMTP daemons. + </synopsis> + <product type="ebuild">clamav</product> + <announced>February 17, 2004</announced> + <revised>February 17, 2004: 01</revised> + <bug>41248</bug> + <access>remote</access> + <affected> + <package name="app-antivirus/clamav" auto="yes" arch="*"> + <unaffected range="ge">0.67</unaffected> + <vulnerable range="lt">0.67</vulnerable> + </package> + </affected> + <background> + <p> + Clam AntiVirus is a GPLed anti-virus toolkit, designed for integration with + mail servers to perform attachment scanning. Clam AV also provides a + command line scanner and a tool for fetching updates of the virus database. + </p> + </background> + <description> + <p> + Oliver Eikemeier of Fillmore Labs discovered the overflow in Clam AV 0.65 + when it handled malformed UUEncoded messages, causing the daemon to shut + down. + </p> + <p> + The problem originated in libclamav which calculates the line length of an + uuencoded message by taking the ASCII value of the first character minus 64 + while doing an assertion if the length is not in the allowed range, + effectively terminating the calling program as clamav would not be + available. + </p> + </description> + <impact type="normal"> + <p> + A malformed message would cause a denial of service, + and depending on the server configuration this may impact other daemons + relying on Clam AV in a fatal manner. + </p> + </impact> + <workaround> + <p> + There is no immediate workaround, a software upgrade is required. + </p> + </workaround> + <resolution> + <p> + All users are urged to upgrade their Clam AV installations to Clam AV 0.67: + </p> + <code> + # emerge sync + # emerge -pv ">=app-antivirus/clamav-0.6.7" + # emerge ">=app-antivirus/clamav-0.6.7"</code> + </resolution> + <references> + </references> +</glsa> |