7.4 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.7 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
28.0%
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
access.redhat.com/errata/RHSA-2024:1834
access.redhat.com/errata/RHSA-2024:1835
access.redhat.com/errata/RHSA-2024:1873
access.redhat.com/errata/RHSA-2024:1876
access.redhat.com/errata/RHSA-2024:1883
access.redhat.com/errata/RHSA-2024:1902
access.redhat.com/errata/RHSA-2024:1903
access.redhat.com/errata/RHSA-2024:1959
access.redhat.com/errata/RHSA-2024:2086
access.redhat.com/security/cve/CVE-2023-40548
bugzilla.redhat.com/show_bug.cgi?id=2241782
lists.debian.org/debian-lts-announce/2024/05/msg00009.html
7.4 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.7 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
28.0%