PT-2018-17242 · Linux+1 · Linux Kernel+1

Published 2018-01-24 · Updated 2025-09-29 · CVE-2018-5953

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.14.15

Description: The issue allows local users to obtain sensitive address information. This is achieved by reading dmesg data from a "software IO TLB" printk call, specifically through the swiotlb print info function in lib/swiotlb.c.

Recommendations: For Linux kernel versions prior to 4.14.15, update to version 4.14.15 or later to resolve the issue. As a temporary workaround, consider restricting access to dmesg data to minimize the risk of exploitation.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALSA-2025_16880

ALT-PU-2018-1077

ALT-PU-2018-1991

CVE-2018-5953

DLA-1731-1

DLA-1731-2

Affected Products

Alt Linux

Linux Kernel

References · 13

• 🔥 https://github.com/johnsonwangqize/cve-linux/blob/master/%20CVE-2018-5953.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-5953 · Security Note
• https://osv.dev/vulnerability/CVE-2018-5953 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-5953 · Security Note
• https://osv.dev/vulnerability/DLA-1731-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-5953 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7d63fb3af87aa67aa7d24466e792f9d7c57d8e79 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-5953 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-5953 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-5953 · Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html · Note
• http://securityfocus.com/bid/105045 · Note
• https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html · Note