CVE-2023-53494
In the Linux kernel, the following vulnerability has been resolved: crypto: xts - Handle EBUSY correctly As it is xts only handles the special return value of EINPROGRESS, which means that in all other cases it will free data related to the request.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: xts - Handle EBUSY correctly As it is xts only handles the special return value of EINPROGRESS, which means that in all other cases it will free data related to the request. However, as the caller of xts 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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/51c082514c2dedf2711c99d93c196cc4eedceb40Patch
- https://git.kernel.org/stable/c/57c3e1d63b63dc0841d41df729297cd7c1c35808Patch
- https://git.kernel.org/stable/c/912eb10b65646ffd222256c78a1c566a3dac177dPatch
- https://git.kernel.org/stable/c/92a07ba4f0af2cccdc2aa5ee32679c9c9714db90Patch
- https://git.kernel.org/stable/c/d5870848879291700fe6c5257dcb48aadd10425cPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.