<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200706-01"> <title>libexif: Integer overflow vulnerability</title> <synopsis> libexif fails to handle Exif (EXchangeable Image File) data inputs, making it vulnerable to an integer overflow. </synopsis> <product type="ebuild">libexif</product> <announced>2007-06-05</announced> <revised count="01">2007-06-05</revised> <bug>178081</bug> <access>remote</access> <affected> <package name="media-libs/libexif" auto="yes" arch="*"> <unaffected range="ge">0.6.15</unaffected> <vulnerable range="lt">0.6.15</vulnerable> </package> </affected> <background> <p> libexif is a library for parsing, editing and saving Exif data. </p> </background> <description> <p> Victor Stinner reported an integer overflow in the exif_data_load_data_entry() function from file exif-data.c while handling Exif data. </p> </description> <impact type="normal"> <p> An attacker could entice a user to process a file with specially crafted Exif extensions with an application making use of libexif, which will trigger the integer overflow and potentially execute arbitrary code or crash the application. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All libexif users should upgrade to the latest version. Please note that users upgrading from "<=media-libs/libexif-0.6.13" should also run revdep-rebuild after their upgrade. </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libexif-0.6.15" # revdep-rebuild --library=/usr/lib/libexif.so</code> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2645">CVE-2007-2645</uri> </references> <metadata tag="submitter" timestamp="2007-06-05T18:50:35Z"> falco </metadata> <metadata tag="bugReady" timestamp="2007-06-03T06:19:11Z"> falco </metadata> </glsa>