CVE-2016-0728
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.44% probability · 88th percentile
- CISA KEV
- Not listed
- Affected
- google/android · hp/server migration pack · linux/linux kernel · debian/debian linux · canonical/ubuntu linux
- Source
- secalert@redhat.com
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=23567fd052a9abb6d67fe8e7a9ccdd9800a540f2Vendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00026.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00012.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00033.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00034.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00035.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00038.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00039.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00040.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00041.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00043.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00044.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00045.htmlMailing List, Third Party Advisory
- http://perception-point.io/2016/01/14/analysis-and-exploitation-of-a-linux-kernel-vulnerability-cve-2016-0728/Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0064.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0065.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0068.htmlThird Party Advisory
- http://source.android.com/security/bulletin/2016-03-01.htmlVendor Advisory
- http://www.debian.org/security/2016/dsa-3448Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/01/19/2Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
- http://www.securityfocus.com/bid/81054Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1034701Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2870-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2870-2Third Party Advisory
- http://www.ubuntu.com/usn/USN-2871-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2871-2Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.