Vulnerability Description
There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Shim | < 15.6 |
Related Weaknesses (CWE)
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/06/07/5Mailing ListThird Party Advisory
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28737Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/06/07/5Mailing ListThird Party Advisory
FAQ
What is CVE-2022-28737?
CVE-2022-28737 is a vulnerability with a CVSS score of 6.5 (MEDIUM). There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to b...
How severe is CVE-2022-28737?
CVE-2022-28737 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-28737?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Shim.