PT-2019-4090 · Linux+2 · Linux Kernel+2

Published 2019-10-10 · Updated 2021-06-22 · CVE-2019-19050

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.3.11

Description The issue is related to a memory leak in the crypto reportstat() function, which can be triggered by causing crypto reportstat alg() failures. This can lead to a denial of service due to memory consumption. The problem is associated with uncontrolled resource expenditure.

Recommendations For Linux kernel versions prior to 5.3.11, update to version 5.3.11 or later to resolve the issue. As a temporary workaround, consider restricting the use of the crypto reportstat() function until a patch is available.

Fix

DoS

Memory Leak

Resource Exhaustion

Weakness Enumeration

CWE-401

CWE-400

Related Identifiers

ALT-PU-2019-3293

ALT-PU-2019-3295

ALT-PU-2019-3369

ALT-PU-2020-1421

ALT-PU-2020-1450

ALT-PU-2020-1714

BDU:2019-04658

CVE-2019-19050

USN-4258-1

USN-4284-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 52

• https://github.com/torvalds/linux/commit/c03b04dcdba1da39903e23cc4d072abf8f68f2dd · Patch
• https://ubuntu.com/security/CVE-2019-18786 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20241206SE81 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-19050 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-19050 · Security Note
• https://ubuntu.com/security/CVE-2019-19965 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19602 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19079 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15291 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-16232 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19947 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4258-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19332 · Vendor Advisory