CVE-2017-16995 Information

Description

The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.

CVSS Vector

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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6f http://openwall.com/lists/oss-security/2017/12/21/2 http://www.securityfocus.com/bid/102288 https://bugs.chromium.org/p/project-zero/issues/detail?id=1454 https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6f https://usn.ubuntu.com/3619-1/ https://usn.ubuntu.com/3619-2/ https://usn.ubuntu.com/3633-1/ https://usn.ubuntu.com/usn/usn-3523-2/ https://www.debian.org/security/2017/dsa-4073 https://www.exploit-db.com/exploits/44298/ https://www.exploit-db.com/exploits/45010/ https://www.exploit-db.com/exploits/45058/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8