CVE-2017-16995
HIGH severity · CVSS 7.8 · Memory corruption
7.8CVSS HIGH
Summary
The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)30%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6fAdvisory
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=a6132276ab5dcc38b3299082efeb25b948263adbAdvisory
- http://openwall.com/lists/oss-security/2017/12/21/2Advisory
- http://www.securityfocus.com/bid/102288Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1454Advisory
- https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6fAdvisory
- https://usn.ubuntu.com/3619-1/Advisory
- https://usn.ubuntu.com/3619-2/Advisory