Vulnerability in Matrixssl
CVE-2022-46505
An issue in MatrixSSL 4.5.1-open and earlier leads to failure to securely check the SessionID field, resulting in the misuse of an all-zero MasterSecret that can decrypt secret data.
Vulnerability class: Dirty Pipe (CVE-2022-0847)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (56.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- smalltown123.notion.site/MatrixSSL-session-resume-bug-a0 (Permissions Required, Vendor Advisory)
- github.com/SmallTown123/details-for-CVE-2022-46505 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-46505?
- CVE-2022-46505 is a high-severity vulnerability in Matrixssl, classified under Improper Initialization. CVSS score: 7.5/10. Published 2023-01-18.
- How severe is CVE-2022-46505?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-46505 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.