CVE-2016-0728

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Summary

CVECVE-2016-0728
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-02-08 03:59:10 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: NVD-CWE-Other | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Google Android 4.0 All All All
Operating System Google Android 4.0.1 All All All
Operating System Google Android 4.0.2 All All All
Operating System Google Android 4.0.3 All All All
Operating System Google Android 4.0.4 All All All
Operating System Google Android 4.1 All All All
Operating System Google Android 4.1.2 All All All
Operating System Google Android 4.2 All All All
Operating System Google Android 4.2.1 All All All
Operating System Google Android 4.2.2 All All All
Operating System Google Android 4.3 All All All
Operating System Google Android 4.3.1 All All All
Operating System Google Android 4.4 All All All
Operating System Google Android 4.4.1 All All All
Operating System Google Android 4.4.2 All All All
Operating System Google Android 4.4.3 All All All
Operating System Google Android 5.0 All All All
Operating System Google Android 5.0.1 All All All
Operating System Google Android 5.0.2 All All All
Operating System Google Android 5.1 All All All
Operating System Google Android 5.1.0 All All All
Operating System Google Android 5.1.1 All All All
Operating System Google Android 6.0 All All All
Operating System Google Android 6.0.1 All All All
Application Hp Server Migration Pack All All All All
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
USN-2871-1: Linux kernel vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Nexus Security Bulletin - March 2016 | Android Open Source Project af854a3a-2127-422b-91ae-364da2661108 source.android.com Vendor Advisory
Linux Kernel CVE-2016-0728 Local Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Analysis and Exploitation of a Linux Kernel Vulnerability (CVE-2016-0728) | Perception Point af854a3a-2127-422b-91ae-364da2661108 perception-point.io Third Party Advisory
[security-announce] SUSE-SU-2016:0746-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
oss-security - Linux kernel: use after free in keyring facility. af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2016:0756-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2016:0751-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
h20565.www2.hp.com/portal/site/hpsc/public/kb/docDisplay af854a3a-2127-422b-91ae-364da2661108 h20565.www2.hp.com Third Party Advisory
USN-2872-3: Linux kernel (Raspberry Pi 2) vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
USN-2873-1: Linux kernel (Utopic HWE) vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
[security-announce] SUSE-SU-2016:0341-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
USN-2871-2: Linux kernel (Vivid HWE) vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Linux Kernel Session Keyring Reference Count Overflow Bug Lets Local Users Obtain Root Privileges - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
[security-announce] SUSE-SU-2016:0205-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Document Display | HPE Support Center af854a3a-2127-422b-91ae-364da2661108 h20566.www2.hpe.com Third Party Advisory
[security-announce] SUSE-SU-2016:0752-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
KEYS: Fix keyring ref leak in join_session_keyring() · torvalds/linux@23567fd · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Third Party Advisory
Document Display | HPE Support Center af854a3a-2127-422b-91ae-364da2661108 h20566.www2.hpe.com Third Party Advisory
[SECURITY] Fedora 23 Update: kernel-4.3.3-303.fc23 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
Linux Kernel 4.4.1 - REFCOUNT Overflow/Use-After-Free in Keyrings Privilege Escalation (1) af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com Third Party Advisory, VDB Entry
USN-2872-1: Linux kernel vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
[security-announce] SUSE-SU-2016:0753-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
USN-2870-2: Linux kernel (Trusty HWE) vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
CVE-2016-0728 Linux Kernel Privilege Escalation Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
Bug 1297475 – CVE-2016-0728 kernel: Possible use-after-free vulnerability in keyring facility af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Third Party Advisory
[SECURITY] Fedora 22 Update: kernel-4.3.4-200.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2016:0745-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Oracle Linux Bulletin - January 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
[security-announce] SUSE-SU-2016:0755-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2016:0757-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2016:0750-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2016:0747-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
SA112 : Linux Kernel Keyring Privilege Escalation | Symantec af854a3a-2127-422b-91ae-364da2661108 bto.bluecoat.com Third Party Advisory
USN-2872-2: Linux kernel (Wily HWE) vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
USN-2870-1: Linux kernel vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Vendor Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Vendor Advisory
Debian -- Security Information -- DSA-3448-1 linux af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
Red Hat Customer Portal MITRE access.redhat.com
Red Hat Customer Portal MITRE access.redhat.com
Red Hat Customer Portal MITRE access.redhat.com
Red Hat Customer Portal MITRE access.redhat.com
Use after free vulnerability in Linux kernel keychain management (CVE-2016-0728) - Red Hat Customer Portal MITRE access.redhat.com
CVE-2016-0728 - Red Hat Customer Portal MITRE access.redhat.com
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