5.1
MEDIUM
CVE-2023-40551
Shim MZ Binary Format Out-of-Bounds Read Vulnerability
Description

A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.

INFO

Published Date :

Jan. 29, 2024, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 8:19 a.m.

Remotely Exploitable :

No

Impact Score :

4.2

Exploitability Score :

0.8
Public PoC/Exploit Available at Github

CVE-2023-40551 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-40551 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
2 Redhat shim
1 Fedoraproject fedora

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

A centralized repository of standalone security patches for open source libraries.

appsec backport cve devsecops fix hotfix open-source patch protection remediation seal security update upgrade vulnerability

Updated: 5 months, 3 weeks ago
182 stars 0 fork 0 watcher
Born at : July 30, 2023, 4:46 p.m. This repo has been linked 265 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-40551 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-40551 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2024:1834
    Added Reference https://access.redhat.com/errata/RHSA-2024:1835
    Added Reference https://access.redhat.com/errata/RHSA-2024:1873
    Added Reference https://access.redhat.com/errata/RHSA-2024:1876
    Added Reference https://access.redhat.com/errata/RHSA-2024:1883
    Added Reference https://access.redhat.com/errata/RHSA-2024:1902
    Added Reference https://access.redhat.com/errata/RHSA-2024:1903
    Added Reference https://access.redhat.com/errata/RHSA-2024:1959
    Added Reference https://access.redhat.com/errata/RHSA-2024:2086
    Added Reference https://access.redhat.com/security/cve/CVE-2023-40551
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2259918
    Added Reference https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html
  • CVE Modified by [email protected]

    Sep. 16, 2024

    Action Type Old Value New Value
    Removed Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html
  • CVE Modified by [email protected]

    Jun. 10, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html [No types assigned]
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 29, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2086 [No types assigned]
  • CVE Modified by [email protected]

    Apr. 25, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1902 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1903 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1959 [No types assigned]
  • CVE Modified by [email protected]

    Apr. 18, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1873 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1876 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1883 [No types assigned]
  • CVE Modified by [email protected]

    Apr. 16, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1834 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1835 [No types assigned]
  • Reanalysis by [email protected]

    Apr. 08, 2024

    Action Type Old Value New Value
    Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
  • Initial Analysis by [email protected]

    Feb. 05, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-40551 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-40551 Vendor Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2259918 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2259918 Issue Tracking, Vendor Advisory
    Added CWE NIST CWE-125
    Added CPE Configuration OR *cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:* versions up to (excluding) 15.8
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Jan. 29, 2024

    Action Type Old Value New Value
    Added Description A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
    Added Reference Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2023-40551 [No types assigned]
    Added Reference Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2259918 [No types assigned]
    Added CWE Red Hat, Inc. CWE-125
    Added CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-40551 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-40551 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} -0.00%

score

0.05085

percentile

CVSS31 - Vulnerability Scoring System
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