Improper Locking Affecting kernel-devel-azure package, versions <4.12.14-8.13.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.09% (38th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES151-KERNELDEVELAZURE-2739923
  • published14 Apr 2022
  • disclosed6 Aug 2019

Introduced: 6 Aug 2019

CVE-2019-11599  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 kernel-devel-azure to version 4.12.14-8.13.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel-azure package and not the kernel-devel-azure package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags changes while it runs, which allows local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c.

References

CVSS Scores

version 3.1