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CVE-2023-52813

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Fix hungtask for PADATA_RESET We found a hungtask bug in test_aead_vec_cfg as follows: INFO: task cryptomgr_t…

Published May 21, 2024EPSS 0.29%

Overview

CVE-2023-52813 is a medium-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

crypto: pcrypt - Fix hungtask for PADATA_RESET

We found a hungtask bug in test_aead_vec_cfg as follows:

INFO: task cryptomgr_test:391009 blocked for more than 120 seconds.

"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

Call trace:

__switch_to+0x98/0xe0

__schedule+0x6c4/0xf40

schedule+0xd8/0x1b4

schedule_timeout+0x474/0x560

wait_for_common+0x368/0x4e0

wait_for_completion+0x20/0x30

wait_for_completion+0x20/0x30

test_aead_vec_cfg+0xab4/0xd50

test_aead+0x144/0x1f0

alg_test_aead+0xd8/0x1e0

alg_test+0x634/0x890

cryptomgr_test+0x40/0x70

kthread+0x1e0/0x220

ret_from_fork+0x10/0x18

Kernel panic - not syncing: hung_task: blocked tasks

For padata_do_parallel, when the return err is 0 or -EBUSY, it will call

wait_for_completion(&wait->completion) in test_aead_vec_cfg. In normal

case, aead_request_complete() will be called in pcrypt_aead_serial and the

return err is 0 for padata_do_para

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/039fec48e062504f14845124a1a25eb199b2ddc0Refgit.kernel.org/stable/c/372636debe852913529b1716f44addd94fff2d28Refgit.kernel.org/stable/c/546c1796ad1ed0d87dab3c4b5156d75819be2316Refgit.kernel.org/stable/c/8f4f68e788c3a7a696546291258bfa5fdb215523Refgit.kernel.org/stable/c/c55fc098fd9d2dca475b82d00ffbcaf97879d77eRefgit.kernel.org/stable/c/c9c1334697301c10e6918d747ed38abfbc0c96e7Refgit.kernel.org/stable/c/e134f3aba98e6c801a693f540912c2d493718ddfRefgit.kernel.org/stable/c/e97bf4ada7dddacd184c3e196bd063b0dc71b41dRefgit.kernel.org/stable/c/fb2d3a50a8f29a3c66682bb426144f40e32ab818Refgit.kernel.org/stable/c/039fec48e062504f14845124a1a25eb199b2ddc0

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52813?

CVE-2023-52813 is a medium-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52813?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52813?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-52813?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52813 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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