CVE-2016-0728 json
The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certai…
published 2016-02-08 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-0757
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.5%
- EPSS 3.5% chance of exploitation in 30 days, percentile 89%
- public exploits
- 2
- Exploit-DB
Summary
The 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.
Patch / fix
- linux linux_kernel 3.10.95, 3.12.53, 3.14.59, 3.16.35, 3.18.26, 4.1.16, 4.3.4, 4.4.1
- linux Debian 14, Debian 13, Debian 12 4.3.3-6
debian advisories DEBIAN-CVE-2016-0728
- linux Ubuntu 14.04 LTS 3.13.0-76.120
- linux-lts-wily Ubuntu 14.04 LTS 4.2.0-25.30~14.04.1
- linux-lts-vivid Ubuntu 14.04 LTS 3.19.0-47.53~14.04.1
- linux-lts-utopic Ubuntu 14.04 LTS 3.16.0-59.79~14.04.1
ubuntu advisories UBUNTU-CVE-2016-0728
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel-rt RHEL 7 EXTRAS_RT 3.10.0-327.4.5.rt56.206.el7_2
- kernel-rt-trace RHEL 7 EXTRAS_RT 3.10.0-327.4.5.rt56.206.el7_2
- kernel-rt-debuginfo-common-x86_64 RHEL 7 EXTRAS_RT 3.10.0-327.4.5.rt56.206.el7_2
- kernel-rt enterprise mrg 2 1:3.10.0-327.rt56.170.el6rt
- kernel-rt-trace enterprise mrg 2 1:3.10.0-327.rt56.170.el6rt
- kernel-rt-vanilla enterprise mrg 2 1:3.10.0-327.rt56.170.el6rt
- kernel-rt-firmware enterprise mrg 2 1:3.10.0-327.rt56.170.el6rt
- kernel-rt-debuginfo-common-x86_64 enterprise mrg 2 1:3.10.0-327.rt56.170.el6rt
red hat advisories RHSA-2016:0103RHSA-2016:0065RHSA-2016:0068RHSA-2016:0064
- kernel-ec2 SLE Module for Public Cloud 12 3.12.51-52.39.1
- kernel-xen SLES for SAP 12, SLES 12, SLED 12 3.12.51-52.39.1
- kernel-syms SLES for SAP 12, SLES 12, SLED 12 3.12.51-52.39.1
- kernel-source SLES for SAP 12, SLES 12, SLED 12 3.12.51-52.39.1
- kernel-default SLES for SAP 12, SLES 12, SLED 12 +1 more 3.12.51-52.39.1
- kernel-obs-build SLE Software Development Kit 12 3.12.51-52.39.1
- kernel-ec2 SLE Module for Public Cloud 12 3.12.51-60.25.1
- kernel-xen SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 3.12.51-60.25.1
suse advisories SUSE-SU-2016:0752-1SUSE-SU-2016:0755-1SUSE-SU-2016:0751-1SUSE-SU-2016:0747-1SUSE-SU-2016:0757-1SUSE-SU-2016:0756-1
- kernel-source openSUSE Tumbleweed 4.8.13-1.1
opensuse advisories openSUSE-SU-2024:10128-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2016-0728 updated cvss 7.2
kernel: Possible use-after-free vulnerability in keyring facility
-
Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-327.4.5.el7, kernel 3.10.0-327.4.5.el7, python-perf 3.10.0-327.4.5.el7, kernel-tools 3.10.0-327.4.5.el7, kernel-tools-libs 3.10.0-327.4.5.el7, kernel-abi-whitelists 3.10.0-327.4.5.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-327.4.5.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-327.4.5.el7, kernel 3.10.0-327.4.5.el7, python-perf 3.10.0-327.4.5.el7, kernel-tools 3.10.0-327.4.5.el7, kernel-tools-libs 3.10.0-327.4.5.el7, kernel-abi-whitelists 3.10.0-327.4.5.el7, +1 morefixed: vendor fix RHSA-2016:0064
-
Red Hat Enterprise Linux ComputeNode EUS (v. 7.1) perf 3.10.0-229.26.2.el7, kernel 3.10.0-229.26.2.el7, kernel-tools 3.10.0-229.26.2.el7, kernel-tools-libs 3.10.0-229.26.2.el7, kernel-abi-whitelists 3.10.0-229.26.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.26.2.el7fixed: vendor fix RHSA-2016:0103
-
Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-327.4.5.el7fixed: vendor fix RHSA-2016:0064
-
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) python-perf 3.10.0-229.26.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.26.2.el7fixed: vendor fix RHSA-2016:0103
-
Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-327.4.5.rt56.206.el7_2, kernel-rt-trace 3.10.0-327.4.5.rt56.206.el7_2, kernel-rt-debuginfo-common-x86_64 3.10.0-327.4.5.rt56.206.el7_2fixed: vendor fix RHSA-2016:0065
-
Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-327.4.5.el7, kernel 3.10.0-327.4.5.el7, python-perf 3.10.0-327.4.5.el7, kernel-kdump 3.10.0-327.4.5.el7, kernel-tools 3.10.0-327.4.5.el7, kernel-tools-libs 3.10.0-327.4.5.el7, +6 morefixed: vendor fix RHSA-2016:0064
-
Red Hat Enterprise Linux Server EUS (v. 7.1) perf 3.10.0-229.26.2.el7, kernel 3.10.0-229.26.2.el7, perf 3.10.0-229.26.2.ael7b, kernel 3.10.0-229.26.2.ael7b, kernel-kdump 3.10.0-229.26.2.el7, kernel-tools 3.10.0-229.26.2.el7, +11 morefixed: vendor fix RHSA-2016:0103
-
Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-327.4.5.el7, kernel-debuginfo-common-x86_64 3.10.0-327.4.5.el7, kernel-debuginfo-common-ppc64le 3.10.0-327.4.5.el7fixed: vendor fix RHSA-2016:0064
show 4 moreshow fewer
-
Red Hat Enterprise Linux Server Optional EUS (v. 7.1) python-perf 3.10.0-229.26.2.el7, python-perf 3.10.0-229.26.2.ael7b, kernel-debuginfo-common-ppc64 3.10.0-229.26.2.el7, kernel-debuginfo-common-s390x 3.10.0-229.26.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.26.2.el7, kernel-debuginfo-common-ppc64le 3.10.0-229.26.2.ael7bfixed: vendor fix RHSA-2016:0103
-
Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-327.4.5.el7, kernel 3.10.0-327.4.5.el7, python-perf 3.10.0-327.4.5.el7, kernel-tools 3.10.0-327.4.5.el7, kernel-tools-libs 3.10.0-327.4.5.el7, kernel-abi-whitelists 3.10.0-327.4.5.el7, +1 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-327.4.5.el7fixed: vendor fix RHSA-2016:0064
-
Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-327.rt56.170.el6rt, kernel-rt-trace 3.10.0-327.rt56.170.el6rt, kernel-rt-vanilla 3.10.0-327.rt56.170.el6rt, kernel-rt-firmware 3.10.0-327.rt56.170.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-327.rt56.170.el6rtfixed: vendor fix RHSA-2016:0068
-
Red Hat Enterprise Linux 4 kernel Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 morenot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Timeline
- First public exploit (EDB-40003)
- Published
Exploit prediction
3.47% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Technology feeds
References
-
git.kernel.org
/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=23567fd052a9abb6d67fe8e7a9ccdd9800a540f2
vendor-advisory
-
github.com
/torvalds/linux/commit/23567fd052a9abb6d67fe8e7a9ccdd9800a540f2
third-party-advisory
-
exploit-db.com
/exploits/39277/
exploit
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00038.html
vendor-advisory, mailing-list, third-party-advisory
-
ubuntu.com
/usn/USN-2871-1
vendor-advisory, third-party-advisory
-
rhn.redhat.com
/errata/RHSA-2016-0068.html
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-01/msg00026.html
vendor-advisory, mailing-list, third-party-advisory
-
ubuntu.com
/usn/USN-2870-2
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00039.html
vendor-advisory, mailing-list, third-party-advisory
-
ubuntu.com
/usn/USN-2872-3
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00035.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00043.html
vendor-advisory, mailing-list, third-party-advisory
-
ubuntu.com
/usn/USN-2872-1
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00045.html
vendor-advisory, mailing-list, third-party-advisory
-
ubuntu.com
/usn/USN-2871-2
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00041.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.fedoraproject.org
/pipermail/package-announce/2016-January/176194.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00034.html
vendor-advisory, mailing-list, third-party-advisory
-
ubuntu.com
/usn/USN-2873-1
vendor-advisory, third-party-advisory
-
lists.fedoraproject.org
/pipermail/package-announce/2016-February/176484.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00033.html
vendor-advisory, mailing-list, third-party-advisory
-
rhn.redhat.com
/errata/RHSA-2016-0065.html
vendor-advisory, third-party-advisory
-
ubuntu.com
/usn/USN-2870-1
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00044.html
vendor-advisory, mailing-list, third-party-advisory
-
ubuntu.com
/usn/USN-2872-2
vendor-advisory, third-party-advisory
-
debian.org
/security/2016/dsa-3448
vendor-advisory, third-party-advisory
-
rhn.redhat.com
/errata/RHSA-2016-0064.html
vendor-advisory, third-party-advisory
-
h20565.www2.hp.com
/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05018265
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-03/msg00040.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2016-02/msg00012.html
vendor-advisory, mailing-list, third-party-advisory
-
kernel.org
/pub/linux/kernel/v4.x/ChangeLog-4.4.1
vendor-advisory
-
source.android.com
/security/bulletin/2016-03-01.html
vendor-advisory
-
securitytracker.com
/id/1034701
vdb-entry, third-party-advisory
-
perception-point.io
/2016/01/14/analysis-and-exploitation-of-a-linux-kernel-vulnerability-cve-2016-0728/
third-party-advisory
-
oracle.com
/technetwork/topics/security/linuxbulletinjan2016-2867209.html
third-party-advisory
-
h20566.www2.hpe.com
/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
third-party-advisory
-
securityfocus.com
/bid/81054
vdb-entry, third-party-advisory
-
bugzilla.redhat.com
/show_bug.cgi?id=1297475
issue-tracking, third-party-advisory
-
bto.bluecoat.com
/security-advisory/sa112
third-party-advisory
- security.netapp.com /advisory/ntap-20160211-0001/
-
openwall.com
/lists/oss-security/2016/01/19/2
mailing-list, third-party-advisory
-
h20566.www2.hpe.com
/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05130958
third-party-advisory
Sources
- CVE List CVE-2016-0728
- NVD CVE-2016-0728
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.