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Diffstat (limited to 'xml/htdocs/security/en/glsa/glsa-200405-06.xml')
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diff --git a/xml/htdocs/security/en/glsa/glsa-200405-06.xml b/xml/htdocs/security/en/glsa/glsa-200405-06.xml new file mode 100644 index 00000000..85926a9b --- /dev/null +++ b/xml/htdocs/security/en/glsa/glsa-200405-06.xml @@ -0,0 +1,73 @@ +<?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="200405-06"> + <title>libpng denial of service vulnerability</title> + <synopsis> + A bug in the libpng library can be abused to crash programs making use of + that library to decode PNG images. + </synopsis> + <product type="ebuild">libpng</product> + <announced>May 14, 2004</announced> + <revised>May 14, 2004: 01</revised> + <bug>49887</bug> + <access>remote </access> + <affected> + <package name="media-libs/libpng" auto="yes" arch="*"> + <unaffected range="ge">1.2.5-r5</unaffected> + <vulnerable range="le">1.2.5-r4</vulnerable> + </package> + </affected> + <background> + <p> + libpng is a standard library used to process PNG (Portable Network + Graphics) images. + </p> + </background> + <description> + <p> + libpng provides two functions (png_chunk_error and png_chunk_warning) for + default error and warning messages handling. These functions do not perform + proper bounds checking on the provided message, which is limited to 64 + bytes. Programs linked against this library may crash when handling a + malicious PNG image. + </p> + </description> + <impact type="normal"> + <p> + This vulnerability could be used to crash various programs using the libpng + library, potentially resulting in a denial of service attack on vulnerable + daemon processes. + </p> + </impact> + <workaround> + <p> + There is no known workaround at this time. All users are advised to upgrade + to the latest available version of libpng. + </p> + </workaround> + <resolution> + <p> + All users of libpng should upgrade to the latest stable version: + </p> + <code> + # emerge sync + + # emerge -pv ">=media-libs/libpng-1.2.5-r5" + # emerge ">=media-libs/libpng-1.2.5-r5"</code> + <p> + You should also run revdep-rebuild to rebuild any packages that depend on + older versions of libpng : + </p> + <code> + # revdep-rebuild</code> + </resolution> + <references> + <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0421">CAN-2004-0421</uri> + </references> + <metadata tag="submitter"> + koon + </metadata> +</glsa> |