VulnerabilityModified
CVE-2022-42905
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.
CRITICAL 9.1EPSS 2.07%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.07%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.)
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 2.07% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- wolfssl/wolfssl
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.htmlThird Party Advisory
- http://seclists.org/fulldisclosure/2023/Jan/11Mailing List, Third Party Advisory
- https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/
- https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stableRelease Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
- http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.htmlThird Party Advisory
- http://seclists.org/fulldisclosure/2023/Jan/11Mailing List, Third Party Advisory
- https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/
- https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stableRelease Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.