Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.14.8 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c13118Vendor Advisory
- http://www.securityfocus.com/bid/102325Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040057Third Party AdvisoryVDB Entry
- https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/Third Party Advisory
- https://github.com/torvalds/linux/commit/c131187db2d3fa2f8bf32fdf4e9a4ef80516846Third Party Advisory
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/usn/usn-3523-2/
- https://www.debian.org/security/2017/dsa-4073Third Party Advisory
- https://www.spinics.net/lists/stable/msg206984.htmlPatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c13118Vendor Advisory
- http://www.securityfocus.com/bid/102325Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040057Third Party AdvisoryVDB Entry
- https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/Third Party Advisory
- https://github.com/torvalds/linux/commit/c131187db2d3fa2f8bf32fdf4e9a4ef80516846Third Party Advisory
FAQ
What is CVE-2017-17862?
CVE-2017-17862 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 l...
How severe is CVE-2017-17862?
CVE-2017-17862 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-17862?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.