PT-2019-5306 · Linux+2 · Linux Kernel+2

Published 2019-04-19 · Updated 2023-02-12 · CVE-2019-14898

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.0.10

Description The issue is related to a flaw in the Linux kernel that allows a local user to obtain sensitive information, cause a denial of service, or possibly have other unspecified impacts. This is achieved by triggering a race condition with mmget not zero or get task mm calls. The vulnerability is caused by synchronization errors when using a shared resource.

Recommendations For Linux kernel versions prior to 5.0.10, update to version 5.0.10 or later to resolve the issue. As a temporary workaround, consider restricting access to sensitive information and implementing additional security measures to minimize the risk of exploitation.

Exploit

Fix

DoS

Race Condition

Improper Locking

Weakness Enumeration

CWE-362

CWE-667

Related Identifiers

BDU:2020-02253

CESA-2020_0328

CESA-2020_0339

CESA-2020_0374

CESA-2020_0375

CVE-2019-14898

RHSA-2020:0328

RHSA-2020:0339

RHSA-2020:0374

RHSA-2020:0375

RHSA-2020_0328

RHSA-2020_0339

RHSA-2020_0374

RHSA-2020_0375

Affected Products

Centos

Linux Kernel

Red Hat

References · 21

• 🔥 https://bugs.chromium.org/p/project-zero/issues/detail?id=1790 · Exploit
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.114 · Vendor Advisory
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.37 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-14898 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-14898 · Security Note
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-14898 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02253 · Security Note
• https://osv.dev/vulnerability/CVE-2019-14898 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-14898 · Vendor Advisory
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14898 · Note
• https://access.redhat.com/security/cve/cve-2019-14898 · Note
• https://oracle.com/security-alerts/cpuApr2021.html · Note
• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.114 · Note