CVE-2022-42905

Description

In wolfSSL before 5.5.2, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS 1.3 client or network attacker can trigger a buffer over-read on the heap of 5 bytes. (WOLFSSL_CALLBACKS is only intended for debugging.)

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 2.78% Top 15%
Vendor Advisory wolfssl.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.wolfssl.com/docs/security-vulnerabilities/ vendor advisory
https://github.com/wolfSSL/wolfssl/releases third party advisory release notes
https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stable third party advisory release notes
http://seclists.org/fulldisclosure/2023/Jan/11 third party advisory mailing list
http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.html third party advisory
https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/

Frequently Asked Questions

What is the severity of CVE-2022-42905?
CVE-2022-42905 has been scored as a critical severity vulnerability.
How to fix CVE-2022-42905?
To fix CVE-2022-42905, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-42905 being actively exploited in the wild?
It is possible that CVE-2022-42905 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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