CVE-2022-42905
CRITICAL severity · CVSS 9.1 · Out-of-bounds read
9.1CVSS CRITICAL
Summary
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.)
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://www.wolfssl.com/docs/security-vulnerabilities/Advisory
- http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.htmlAdvisory
- http://seclists.org/fulldisclosure/2023/Jan/11Advisory
- https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/
- https://github.com/wolfSSL/wolfssl/releasesAdvisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stableAdvisory