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CVE-2022-2601

8.6 · HIGH

A buffer overflow was found in grub_font_construct_glyph().

Published Dec 14, 2022CWE-122EPSS 0.52%

Overview

CVE-2022-2601 is a high-severity vulnerability. It was published on December 14, 2022 and has a CVSS 3.1 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugzilla.redhat.com/show_bug.cgi?id=2112975#c0Refsecurity.gentoo.org/glsa/202311-14Refsecurity.netapp.com/advisory/ntap-20230203-0004/Refarstechnica.com/security/2024/08/a-patch-microsoft-spent-2-years-preparing-is-making-a-mess-for-some-linux-users/Refbugzilla.redhat.com/show_bug.cgi?id=2112975#c0Refsecurity.gentoo.org/glsa/202311-14Refsecurity.netapp.com/advisory/ntap-20230203-0004/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-2601?

CVE-2022-2601 is a high-severity vulnerability. It was published on December 14, 2022 and has a CVSS 3.1 base score of 8.6 (HIGH).

How severe is CVE-2022-2601?

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-2601?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-2601?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-2601 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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