CVE-2022-28737
Last modified
CVE-2022-28737 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Shim | < 15.6 |
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 List, Third 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 List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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