{"id":"UBUNTU-CVE-2015-8777","details":"The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6) before 2.23 allows local users to bypass a pointer-guarding protection mechanism via a zero value of the LD_POINTER_GUARD environment variable.","modified":"2026-04-22T10:39:49.724045Z","published":"2016-01-20T00:00:00Z","related":["USN-2985-1"],"upstream":["CVE-2015-8777"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-8777"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2015/09/05/8"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2016/01/20/1"},{"type":"REPORT","url":"http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2985-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-8777"}],"affected":[{"package":{"name":"eglibc","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/eglibc@2.19-0ubuntu6.8?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.19-0ubuntu6.8"}]}],"versions":["2.17-93ubuntu4","2.18-0ubuntu1","2.18-0ubuntu2","2.18-0ubuntu4","2.18-0ubuntu5","2.18-0ubuntu6","2.18-0ubuntu7","2.19-0ubuntu2","2.19-0ubuntu3","2.19-0ubuntu4","2.19-0ubuntu5","2.19-0ubuntu6","2.19-0ubuntu6.1","2.19-0ubuntu6.3","2.19-0ubuntu6.4","2.19-0ubuntu6.5","2.19-0ubuntu6.6","2.19-0ubuntu6.7"],"ecosystem_specific":{"binaries":[{"binary_name":"eglibc-source","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc-bin","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc-dev-bin","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-amd64","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-armel","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-dev-amd64","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-dev-armel","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-dev-i386","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-dev-ppc64","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-dev-x32","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-i386","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-pic","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-ppc64","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-prof","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"libc6-x32","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"multiarch-support","binary_version":"2.19-0ubuntu6.8"},{"binary_name":"nscd","binary_version":"2.19-0ubuntu6.8"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-8777.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"low"}]}