PT-2018-2485 · Linux+3 · Linux Kernel+3

Pavel Tikhomirov + 1 · Published 2017-12-08 · Updated 2019-09-02 · CVE-2018-16862

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 (affected versions not specified)

Description The issue is related to the cleancache subsystem of the Linux kernel, which incorrectly initializes new files. This can allow an attacker to expose protected information. The problem occurs when the cleancache subsystem clears an inode after the final file truncation, and a new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2017-2771

ALT-PU-2018-1991

BDU:2019-00772

CVE-2018-16862

DLA-1715-1

DLA-1731-1

DLA-1731-2

MGASA-2018-0487

MGASA-2019-0098

MGASA-2019-0171

OPENSUSE-SU-2019:0065-1

OPENSUSE-SU-2019_0065-1

OPENSUSE-SU-2019_0140-1

SUSE-SU-2019:0148-1

SUSE-SU-2019:0150-1

SUSE-SU-2019:0196-1

SUSE-SU-2019:0222-1

SUSE-SU-2019:0224-1

SUSE-SU-2019:0320-1

SUSE-SU-2019:0439-1

SUSE-SU-2019:0541-1

SUSE-SU-2019_0439-1

USN-3879-1

USN-3879-2

USN-4094-1

USN-4118-1

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 637

• https://ubuntu.com/security/CVE-2019-15215 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-13053 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15216 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-13099 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4118-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11884 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-10639 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15292 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15211 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-5383 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:0148-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16862 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-19824 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-12818 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0171 · Vendor Advisory