Vulnerability Monitor

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CVE-2016-2143

The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.

Published

2016-04-27T17:59:08.867

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 3.2.79	Yes
Operating System	linux	linux_kernel	< 3.12.58	Yes
Operating System	linux	linux_kernel	< 3.16.35	Yes
Operating System	linux	linux_kernel	< 4.1.21	Yes
Operating System	linux	linux_kernel	< 4.4.6	Yes
Operating System	debian	debian_linux	6.0	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	redhat	enterprise_linux	7.0	Yes
Operating System	oracle	linux	7	Yes

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1 Patch, Vendor Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html Third Party Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2016-1539.html Third Party Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2016-2766.html Third Party Advisory ([email protected])
http://www.debian.org/security/2016/dsa-3607 Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory ([email protected])
https://github.com/torvalds/linux/commit/3446c13b268af86391d06611327006b059b8bab1 Patch ([email protected])
https://security-tracker.debian.org/tracker/CVE-2016-2143 Third Party Advisory ([email protected])
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2016-1539.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2016-2766.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2016/dsa-3607 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/3446c13b268af86391d06611327006b059b8bab1 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://security-tracker.debian.org/tracker/CVE-2016-2143 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)