CVE-2015-8709

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Summary

CVECVE-2015-8709
StatePUBLISHED
Assignerdebian
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-02-08 03:59:05 UTC
Updated2026-05-06 22:30:45 UTC
Descriptionkernel/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.

Risk And Classification

Primary CVSS: v3.0 7 HIGH from [email protected]

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

Problem Types: CWE-264 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7HIGHCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary6.9AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[security-announce] SUSE-SU-2016:1031-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[security-announce] SUSE-SU-2016:1034-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[security-announce] SUSE-SU-2016:1045-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
'Re: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
Bug 1295287 – CVE-2015-8709 Kernel: ptrace: potential privilege escalation in user namespaces af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
[security-announce] SUSE-SU-2016:1033-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[security-announce] SUSE-SU-2016:1041-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Linux Kernel ptrace() Namespace Bug Lets Local Users Obtain Elevated Privileges - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
[security-announce] SUSE-SU-2016:1039-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Linux Kernel 'kernel/ptrace.c' Local Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
[security-announce] SUSE-SU-2016:1037-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
LKML: Jann Horn: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids af854a3a-2127-422b-91ae-364da2661108 lkml.org
[security-announce] SUSE-SU-2016:1019-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[security-announce] SUSE-SU-2016:1764-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[security-announce] openSUSE-SU-2016:1008-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[security-announce] SUSE-SU-2016:1038-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[SECURITY] Fedora 22 Update: kernel-4.3.4-200.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[security-announce] SUSE-SU-2016:1040-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
'Re: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
Debian -- Security Information -- DSA-3434-1 linux af854a3a-2127-422b-91ae-364da2661108 www.debian.org
oss-security - CVE Request: Linux kernel: privilege escalation in user namespaces af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
[security-announce] SUSE-SU-2016:1032-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[security-announce] SUSE-SU-2016:1046-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
oss-security - Re: CVE Request: Linux kernel: privilege escalation in user namespaces af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
[security-announce] SUSE-SU-2016:1035-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
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