Heap-based Buffer Overflow Affecting grub2-efi-ia32-cdboot package, versions <1:2.02-0.87.0.26.el7_9.14
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Test your applications- Snyk ID SNYK-ORACLE7-GRUB2EFIIA32CDBOOT-6807761
- published 4 May 2024
- disclosed 14 Dec 2022
Introduced: 14 Dec 2022
CVE-2022-2601 Open this link in a new tabHow to fix?
Upgrade Oracle:7 grub2-efi-ia32-cdboot to version 1:2.02-0.87.0.26.el7_9.14 or higher.
This issue was patched in ELSA-2024-2002.
NVD Description
Note: Versions mentioned in the description apply only to the upstream grub2-efi-ia32-cdboot package and not the grub2-efi-ia32-cdboot package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
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.
References
- https://linux.oracle.com/cve/CVE-2022-2601.html
- https://linux.oracle.com/errata/ELSA-2023-0752.html
- https://linux.oracle.com/errata/ELSA-2023-12019.html
- https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0
- https://security.netapp.com/advisory/ntap-20230203-0004/
- https://security.gentoo.org/glsa/202311-14