PT-2019-2752 · Linux+2 · Linux Kernel+2

Jann Horn · Published 2019-04-05 · Updated 2023-10-08 · CVE-2019-11486

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 5.0.8

Description The issue is related to the implementation of the Siemens R3964 protocol driver in the Linux kernel, specifically in the drivers/tty/n r3964.c file. It involves errors in synchronization when using a shared resource, known as a "race condition". Exploitation of this issue could allow an attacker to cause a denial of service.

Recommendations For Linux kernel versions prior to 5.0.8, update to version 5.0.8 or later to resolve the issue. As a temporary workaround, consider restricting access to the vulnerable driver to minimize the risk of exploitation.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

ALT-PU-2019-1665

ALT-PU-2019-1710

ALT-PU-2020-1198

ALT-PU-2020-1501

ALT-PU-2020-2410

ALT-PU-2020-2433

ALT-PU-2021-1870

BDU:2019-02688

CVE-2019-11486

DLA-1799-1

DLA-1799-2

DLA-1824-1

DSA-4465-1

MGASA-2019-0170

MGASA-2019-0171

MGASA-2019-0172

OPENSUSE-SU-2019:1404-1

OPENSUSE-SU-2019:1479-1

OPENSUSE-SU-2019_1404-1

OPENSUSE-SU-2019_1407-1

OPENSUSE-SU-2019_1479-1

SUSE-SU-2019:1287-1

SUSE-SU-2019:1289-1

SUSE-SU-2019:14089-1

SUSE-SU-2019:1527-1

SUSE-SU-2019:1529-1

SUSE-SU-2019:1530-1

SUSE-SU-2019:1532-1

SUSE-SU-2019:1535-1

SUSE-SU-2019:1536-1

SUSE-SU-2019:1550-1

SUSE-SU-2019:2430-1

SUSE-SU-2019_14089-1

Affected Products

Alt Linux

Linux Kernel

Suse

References · 901

• https://github.com/torvalds/linux/commit/c7084edc3f6d67750f50d4183134c4fb5712a5c8 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2019-11486 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html · Vendor Advisory
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.8 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-11486 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-1799-1 · Vendor Advisory
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c7084edc3f6d67750f50d4183134c4fb5712a5c8 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0170 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-02688 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2019:1529-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0170.html · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2019:1479-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-11486 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-11486 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:1287-1 · Vendor Advisory