CVE-2023-4693

Description

An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.

References

https://security.netapp.com/advisory/ntap-20231208-0002/

https://security.gentoo.org/glsa/202311-14

https://seclists.org/oss-sec/2023/q4/37

https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/PERFILCHFEUGG3OAMC6W55P6DDIBZK4Q/

https://lists.fedoraproject.org/archives/list/[email protected]/message/OIRJ5UZRXX2KLR4IKBJEQUNGOCXMMDLY/

https://lists.fedoraproject.org/archives/list/[email protected]/message/FUU42E7CPYLATXOYVYNW6YTXXULAOV6L/

https://bugzilla.redhat.com/show_bug.cgi?id=2238343

https://access.redhat.com/security/cve/CVE-2023-4693

https://access.redhat.com/errata/RHSA-2024:2456

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3