{"id":"UBUNTU-CVE-2013-4788","details":"The PTR_MANGLE implementation in the GNU C Library (aka glibc or libc6) 2.4, 2.17, and earlier, and Embedded GLIBC (EGLIBC) does not initialize the random value for the pointer guard, which makes it easier for context-dependent attackers to control execution flow by leveraging a buffer-overflow vulnerability in an application and using the known zero value pointer guard to calculate a pointer address.","modified":"2025-07-16T07:17:09.778040Z","published":"2013-10-04T17:55:00Z","withdrawn":"2025-07-18T16:42:56Z","upstream":["CVE-2013-4788"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2013-4788"},{"type":"REPORT","url":"http://hmarco.org/bugs/CVE-2013-4788.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2013-4788"}],"affected":[{"package":{"name":"eglibc","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/eglibc@2.18-0ubuntu1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.18-0ubuntu1"}]}],"versions":["2.17-93ubuntu4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"eglibc-source","binary_version":"2.18-0ubuntu1"},{"binary_name":"glibc-doc","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc-bin","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc-dev-bin","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-amd64","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-armel","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-dbg","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-dev","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-dev-amd64","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-dev-armel","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-dev-i386","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-dev-ppc64","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-dev-x32","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-i386","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-pic","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-ppc64","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-prof","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-udeb","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-x32","binary_version":"2.18-0ubuntu1"},{"binary_name":"libc6-xen","binary_version":"2.18-0ubuntu1"},{"binary_name":"libnss-dns-udeb","binary_version":"2.18-0ubuntu1"},{"binary_name":"libnss-files-udeb","binary_version":"2.18-0ubuntu1"},{"binary_name":"multiarch-support","binary_version":"2.18-0ubuntu1"},{"binary_name":"nscd","binary_version":"2.18-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-4788.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"low"}]}