Main Vulnerability Database Vulnerabilities #VU37732

Buffer overflow in Debian Linux - CVE-2017-17852

Published: December 27, 2017 / Updated: August 8, 2020

Vulnerability identifier: #VU37732

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-17852

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local authenticated user to execute arbitrary code.

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 mishandling of 32-bit ALU ops.

Affected software

Debian Linux
Arch Linux
Fedora
kernel

How to mitigate CVE-2017-17852

Install update from vendor's website.

kernel - addressed in versions 4.14.11-200.fc26, 4.14.11-300.fc27

External References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=468f6eafa6c44cb2c5d8aad35e12f06c240a812a
http://www.openwall.com/lists/oss-security/2017/12/21/2
https://github.com/torvalds/linux/commit/468f6eafa6c44cb2c5d8aad35e12f06c240a812a

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