Detections
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CVE-2017-17862

medium

Description

kernel/bpf/verifier.c in the Linux kernel through 4.14.8 ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service.

References

https://www.spinics.net/lists/stable/msg206984.html

https://www.debian.org/security/2017/dsa-4073

https://github.com/torvalds/linux/commit/c131187db2d3fa2f8bf32fdf4e9a4ef805168467

https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-fix-branch-pruning-logic.patch?h=stretch-security

http://www.securitytracker.com/id/1040057

http://www.securityfocus.com/bid/102325

https://usn.ubuntu.com/usn/usn-3523-2/

https://usn.ubuntu.com/3619-2/

https://usn.ubuntu.com/3619-1/

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c131187db2d3fa2f8bf32fdf4e9a4ef805168467

Details

Source: Mitre, NVD

Published: 2017-12-27

Updated: 2025-04-20

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

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

Severity: Medium

EPSS

EPSS: 0.00041