PT-2017-15047 · Linux+1 · Linux Kernel+1

Jann Horn · Published 2017-12-23 · Updated 2024-06-15 · CVE-2017-17853

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 4.14.8

Description The issue allows local users to cause a denial of service, potentially resulting in memory corruption, by leveraging incorrect BPF RSH signed bounds calculations in the kernel/bpf/verifier.c file. This could possibly have other unspecified impacts.

Recommendations For Linux kernel versions through 4.14.8, update to a version later than 4.14.8 to resolve the issue. As a temporary workaround, consider restricting access to the BPF RSH functionality until a patch is available.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2018-1016

CVE-2017-17853

MGASA-2018-0062

MGASA-2018-0063

MGASA-2018-0064

OPENSUSE-SU-2024:10728-1

OPENSUSE-SU-2024:13704-1

Affected Products

Alt Linux

Linux Kernel

References · 234

• https://github.com/torvalds/linux/commit/4374f256ce8182019353c0c639bb8d0695b4c941 · Patch
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4374f256ce8182019353c0c639bb8d0695b4c941 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-17853 · Security Note
• https://advisories.mageia.org/MGASA-2018-0064.html · Security Note
• https://advisories.mageia.org/MGASA-2018-0063.html · Security Note
• https://osv.dev/vulnerability/MGASA-2018-0062 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-17853 · Security Note
• https://osv.dev/vulnerability/MGASA-2018-0064 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10728-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-17853 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-17853 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2018-0063 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:13704-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-17853 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17853 · Vendor Advisory