UBUNTU-CVE-2022-21499
KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
02 / AFFECTED SOFTWARE
Affected packages
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38 explicit affected versions
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7 explicit affected versions
39 explicit affected versions
17 explicit affected versions
4 explicit affected versions
26 explicit affected versions
4 explicit affected versions
39 explicit affected versions
43 explicit affected versions
6 explicit affected versions
40 explicit affected versions
4 explicit affected versions
28 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
05 / REFERENCES
Further evidence
- https://ubuntu.com/security/CVE-2022-21499
- https://ubuntu.com/security/notices/USN-5465-1
- https://ubuntu.com/security/notices/USN-5466-1
- https://ubuntu.com/security/notices/USN-5467-1
- https://ubuntu.com/security/notices/USN-5468-1
- https://ubuntu.com/security/notices/USN-5469-1
- https://ubuntu.com/security/notices/USN-5470-1
- https://ubuntu.com/security/notices/USN-5471-1
- https://ubuntu.com/security/notices/USN-5484-1
- https://www.cve.org/CVERecord?id=CVE-2022-21499
- https://www.openwall.com/lists/oss-security/2022/05/24/10
- https://www.openwall.com/lists/oss-security/2022/05/24/7