CVE-2023-4693

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
LOCAL
HIGH
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
redhatCNA
5.3 MEDIUM
LOCAL
HIGH
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
VendorProductVersion
gnugrub2
𝑥
< 2.12
redhatenterprise_linux
8.0
redhatenterprise_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
grub2
bullseye (security)
2.06-3~deb11u6
fixed
bullseye
2.06-3~deb11u6
fixed
bookworm
2.06-13+deb12u1
fixed
bookworm (security)
2.06-13+deb12u1
fixed
trixie
2.12-5
fixed
sid
2.12-5
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
grub2
oracular
not-affected
noble
not-affected
mantic
not-affected
lunar
ignored
jammy
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected
grub2-signed
oracular
Fixed 1.199
released
noble
Fixed 1.199
released
mantic
Fixed 1.197
released
lunar
Fixed 1.193.2
released
jammy
Fixed 1.187.6
released
focal
Fixed 1.187.6~20.04.1
released
bionic
needs-triage
xenial
needs-triage
trusty
ignored
grub2-unsigned
oracular
not-affected
noble
not-affected
mantic
not-affected
lunar
Fixed 2.06-2ubuntu17.2
released
jammy
Fixed 2.06-2ubuntu14.4
released
focal
Fixed 2.06-2ubuntu14.4
released
bionic
needs-triage
xenial
needs-triage
trusty
ignored
Common Weakness Enumeration
References
https://access.redhat.com/errata/RHSA-2024:2456
https://access.redhat.com/errata/RHSA-2024:3184
https://access.redhat.com/security/cve/CVE-2023-4693
https://bugzilla.redhat.com/show_bug.cgi?id=2238343
https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/
https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html
https://seclists.org/oss-sec/2023/q4/37
https://access.redhat.com/errata/RHSA-2024:2456
https://access.redhat.com/errata/RHSA-2024:3184
https://access.redhat.com/security/cve/CVE-2023-4693
https://bugzilla.redhat.com/show_bug.cgi?id=2238343
https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FUU42E7CPYLATXOYVYNW6YTXXULAOV6L/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OIRJ5UZRXX2KLR4IKBJEQUNGOCXMMDLY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PERFILCHFEUGG3OAMC6W55P6DDIBZK4Q/
https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html
https://seclists.org/oss-sec/2023/q4/37
https://security.gentoo.org/glsa/202311-14
https://security.netapp.com/advisory/ntap-20231208-0002/