CVE-2023-40550
Shim: out-of-bound read in verify_buffer_sbat()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- shim
Version range not reported
- shim-signed
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim-unsigned-x64
Version range not reported
- shim
Version range not reported
- shim
Version range not reported
- shim-unsigned-aarch64
Version range not reported
- shim-unsigned-x64
Version range not reported
- shim
Version range not reported