CVE-2017-15274

MEDIUM

Description

security/keys/keyctl.c in the Linux kernel before 4.11.5 does not consider the case of a NULL payload in conjunction with a nonzero length value, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted add_key or keyctl system call, a different vulnerability than CVE-2017-12192.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5649645d725c73df4302428ee4e02c869248b4c5

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.5

http://www.securityfocus.com/bid/101292

https://access.redhat.com/errata/RHSA-2019:1946

https://bugzilla.suse.com/show_bug.cgi?id=1045327

https://github.com/torvalds/linux/commit/5649645d725c73df4302428ee4e02c869248b4c5

https://patchwork.kernel.org/patch/9781573/

https://usn.ubuntu.com/3583-1/

https://usn.ubuntu.com/3583-2/

Details

Source: MITRE

Published: 2017-10-12

Updated: 2018-03-16

Type: CWE-476

Risk Information

CVSS v2.0

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM