CVE-2021-47351
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,…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
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/20200630130438.141649-1-houtao1@huawei.com
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-617, CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6Patch
- https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08Patch
- https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82Patch
- https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386Patch
- https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5Patch
- https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6Patch
- https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08Patch
- https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82Patch
- https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386Patch
- https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.