Out-of-bounds Read in Trustedfirmware Trusted Firmware-A
CVE-2022-47630
Trusted Firmware-A through 2.8 has an out-of-bounds read in the X.509 parser for parsing boot certificates. This affects downstream use of get_ext and auth_nvctr. Attackers might be able to trigger dangerous read side effects or obtain sensitive information about microarchitectural state.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (49.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.trustedfirmware.org/news/ (Vendor Advisory)
- trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisor… (Patch, Vendor Advisory)
- www.openwall.com/lists/oss-security/2023/01/16/8 (mailing-list, Patch, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-47630?
- CVE-2022-47630 is a high-severity vulnerability in Trustedfirmware Trusted Firmware-A, classified under Out-of-bounds Read. CVSS score: 7.4/10. Published 2023-01-16.
- How severe is CVE-2022-47630?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2022-47630 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.