CVE-2017-17862
Advisory lineage Upstream: 0 Downstream: 16
Modified
Published: 23 Dec 2017, 17:00
Last modified:05 Aug 2024, 21:06
Vulnerability Summary
Overall Risk (default)
low
22/100 CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.08% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
23 Dec 2017, 17:00
Published
Vulnerability first disclosed
05 Aug 2024, 21:06
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 0.08%• Percentile: 23%
Techniques & Countermeasures
- CWE-20•Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected Systems
- debian•debian_linux
9.0
- linux•linux_kernel
≤ 4.14.8
References (10)
- https://github.com/torvalds/linux/commit/c131187db2d3fa2f8bf32fdf4e9a4ef805168467
- https://usn.ubuntu.com/3619-2/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c131187db2d3fa2f8bf32fdf4e9a4ef805168467
- https://www.spinics.net/lists/stable/msg206984.html
- http://www.securityfocus.com/bid/102325
- https://www.debian.org/security/2017/dsa-4073
- https://usn.ubuntu.com/usn/usn-3523-2/
- https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-fix-branch-pruning-logic.patch?h=stretch-security
- https://usn.ubuntu.com/3619-1/
- http://www.securitytracker.com/id/1040057