CVE-2023-40547

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Source

https://nvd.nist.gov/vuln/detail/CVE-2023-40547

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-40547.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-40547

Related

Published

2024-01-25T16:15:07Z

Modified

2024-09-18T03:25:15.959015Z

Severity

8.3 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.

References

Affected packages

Debian:11 / shim

Package

Name: shim
Purl: pkg:deb/debian/shim?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

15.8-1~deb11u1

Affected versions

15.*

15.4-7

15.6-1~deb10u1

15.6-1~deb11u1

15.6-1

15.7-1~deb10u1

15.7-1~deb11u1

15.7-1

15.8-1~deb10u1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / shim

Package

Name: shim
Purl: pkg:deb/debian/shim?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

15.8-1~deb12u1

Affected versions

15.*

15.7-1

15.8-1~deb10u1

15.8-1~deb11u1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / shim

Package

Name: shim
Purl: pkg:deb/debian/shim?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

15.8-1

Affected versions

15.*

15.7-1

15.8-1~deb10u1

15.8-1~deb11u1

15.8-1~deb12u1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Git / github.com/rhboot/shim

Affected ranges

Type: GIT
Repo: https://github.com/rhboot/shim
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

5914984a1ffeab841f482c791426d7ca9935a5e6

Affected versions

0.*

0.3

0.4

0.5

0.7

0.8

0.9

Other

15.*

15.2

15.3

15.4

15.5

15.5-rc2

15.6

15.6-rc2

15.7

shim-15.*

shim-15.3-rc1

shim-15.3-rc2

shim-15.3-rc3

shim-15.3-rc4