CVE-2015-8709

 

Published at: - 08-02-2016 04:59

Last modified: - 21-09-2022 08:44

Total changes: - 2

Description

** DISPUTED ** 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."

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• [oss-security] 20151231 Re: CVE Request: Linux kernel: privilege escalation in user namespaces-
• [linux-kernel] 20160106 Re: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids-
• [linux-kernel] 20160106 Re: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids-
• [oss-security] 20151217 CVE Request: Linux kernel: privilege escalation in user namespaces-
• [linux-kernel] 20151226 [PATCH] ptrace: being capable wrt a process requires mapped uids/gids-
• https://bugzilla.redhat.com/show_bug.cgi?id=1295287
• SUSE-SU-2016:1764-
• openSUSE-SU-2016:1008-
• SUSE-SU-2016:1039-
• SUSE-SU-2016:1035-
• SUSE-SU-2016:1040-
• SUSE-SU-2016:1033-
• SUSE-SU-2016:1034-
• SUSE-SU-2016:1045-
• SUSE-SU-2016:1041-
• SUSE-SU-2016:1038-
• SUSE-SU-2016:1037-
• SUSE-SU-2016:1019-
• SUSE-SU-2016:1046-
• SUSE-SU-2016:1031-
• SUSE-SU-2016:1032-
• FEDORA-2016-5d43766e33-
• 1034899-
• 79899-
• DSA-3434-

 

Keywords

NVD

 

CVE-2015-8709

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures