Use After Free Affecting torvalds/linux package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.36% (58th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006638
  • published26 Jan 2022
  • disclosed28 Nov 2019
  • creditUnknown

Introduced: 28 Nov 2019

CVE-2019-19318  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

There is no fixed version for torvalds/linux.

Overview

Affected versions of this package are vulnerable to Use After Free. In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,

References

CVSS Base Scores

version 3.1