CVE-2021-47351CWE-617CWE-787

CVE-2021-47351

High · published May 21, 2024

CVSS v3.1
7.8
EPSS
0%
Percentile
15.1
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

ubifs: Fix races between xattr_{set|get} and listxattr operations

UBIFS may occur some problems with concurrent xattr_{set|get} and

listxattr operations, such as assertion failure, memory corruption,

stale xattr value[1].

Fix it by importing a new rw-lock in @ubifs_inode to serilize write

operations on xattr, concurrent read operations are still effective,

just like ext4.

[1] https://lore.kernel.org/linux-mtd/[email protected]

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00247 · 15.1th percentile
Weaknesses
CWE-617 · Reachable Assertion; CWE-787 · Out-of-bounds Write
Published
2024-05-21T19:15Z
Affected products (4)
ProductVersionsFixed in
linux/linux_kernel≥ 2.6.27, < 5.4.1335.4.133
linux/linux_kernel≥ 5.5, < 5.10.515.10.51
linux/linux_kernel≥ 5.11, < 5.12.185.12.18
linux/linux_kernel≥ 5.13, < 5.13.35.13.3
References (10)
EPSS history
Timeline
  • 21 MAY 14:35Z
    ubifs: Fix races between xattr_{set|get} and listxattr operations
    cvelistv5