CVE-2015-8709 Information

Description

LICENSE README.md cvefilelist cvelist nvdcve nvdpages.sh scripts test-CVE-2017-1882.markdown test-CVE-2017-18822.markdown tmpvendorlinks DISPUTED LICENSE README.md cvefilelist cvelist nvdcve nvdpages.sh scripts test-CVE-2017-1882.markdown test-CVE-2017-18822.markdown tmpvendorlinks kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings which allows local users to gain privileges by establishing a user namespace waiting for a root process to enter that namespace with an unsafe uid or gid and then using the ptrace system call. NOTE: the vendor states \there is no kernel bug here.\

CVSS Vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html http://marc.info/?l=linux-kernel&m=145204362722256&w=2 http://marc.info/?l=linux-kernel&m=145204641422813&w=2 http://www.debian.org/security/2016/dsa-3434 http://www.openwall.com/lists/oss-security/2015/12/17/12 http://www.openwall.com/lists/oss-security/2015/12/31/5 http://www.securityfocus.com/bid/79899 http://www.securitytracker.com/id/1034899 https://bugzilla.redhat.com/show_bug.cgi?id=1295287 https://lkml.org/lkml/2015/12/25/71

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.0