CVE-2015-8709

7.0 HIGH

Published: February 08, 2016 Modified: May 06, 2026

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html

Source: security@debian.org

http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html

Source: security@debian.org

http://marc.info/?l=linux-kernel&m=145204362722256&w=2

Source: security@debian.org

http://marc.info/?l=linux-kernel&m=145204641422813&w=2

Source: security@debian.org

http://www.debian.org/security/2016/dsa-3434

Source: security@debian.org

http://www.openwall.com/lists/oss-security/2015/12/17/12

Source: security@debian.org

http://www.openwall.com/lists/oss-security/2015/12/31/5

Source: security@debian.org

http://www.securityfocus.com/bid/79899

Source: security@debian.org

http://www.securitytracker.com/id/1034899

Source: security@debian.org

https://bugzilla.redhat.com/show_bug.cgi?id=1295287

Source: security@debian.org

https://lkml.org/lkml/2015/12/25/71

Source: security@debian.org

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html