Improper Locking Affecting kernel-obs-build package, versions <4.12.14-197.10.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-SLES151-KERNELOBSBUILD-2748371
  • published14 Apr 2022
  • disclosed15 Jul 2019

Introduced: 15 Jul 2019

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

How to fix?

Upgrade SLES:15.1 kernel-obs-build to version 4.12.14-197.10.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-obs-build package and not the kernel-obs-build 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