CVE-2023-53373

high

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.

References

https://git.kernel.org/stable/c/cc4d0d4251748a8a68026938f4055d2ac47c5719

https://git.kernel.org/stable/c/ae849d2f48019ff9c104e32bf588ccbfb200e971

https://git.kernel.org/stable/c/9477db935eb690f697d9bcc4f608927841bc8b36

https://git.kernel.org/stable/c/63551e4b7cbcd9914258827699eb2cb6ed6e4a16

https://git.kernel.org/stable/c/4d497e8b200a175094e0ac252ed878add39b8771

https://git.kernel.org/stable/c/36ec108b7bd7e280edb22de028467bd09d644620

https://git.kernel.org/stable/c/32e62025e5e52fbe4812ef044759de7010b15dbc

https://git.kernel.org/stable/c/1effbddaff60eeef8017c6dea1ee0ed970164d14

Details

Source: Mitre, NVD

Published: 2025-09-18

Updated: 2025-09-19

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.00024