CVE-2020-12659

medium

Description

An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html

https://bugzilla.kernel.org/show_bug.cgi?id=207225

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99e3a236dd43d06c65af0a2ef9cb44306aef6e02

https://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02

https://security.netapp.com/advisory/ntap-20200608-0001/

https://usn.ubuntu.com/4387-1/

https://usn.ubuntu.com/4388-1/

https://usn.ubuntu.com/4389-1/

Details

Source: MITRE

Published: 2020-05-05

Updated: 2020-06-17

Type: CWE-787

Risk Information

CVSS v2

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 6.7

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

Impact Score: 5.9

Exploitability Score: 0.8

Severity: MEDIUM