6.5
MEDIUM
CVE-2023-42755
Linux Kernel RSVP Classifier Out-of-Bounds Read Vulnerability
Description

A flaw was found in the IPv4 Resource Reservation Protocol (RSVP) classifier in the Linux kernel. The xprt pointer may go beyond the linear part of the skb, leading to an out-of-bounds read in the `rsvp_classify` function. This issue may allow a local user to crash the system and cause a denial of service.

INFO

Published Date :

Oct. 5, 2023, 7:15 p.m.

Last Modified :

Nov. 21, 2024, 8:23 a.m.

Remotely Exploitable :

No

Impact Score :

4.0

Exploitability Score :

2.0
Affected Products

The following products are affected by CVE-2023-42755 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 Linux linux_kernel
1 Redhat enterprise_linux
1 Debian debian_linux
References to Advisories, Solutions, and Tools

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).

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

The following list is the news that have been mention CVE-2023-42755 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-42755 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-2024:2950
    Added Reference https://access.redhat.com/errata/RHSA-2024:3138
    Added Reference https://access.redhat.com/security/cve/CVE-2023-42755
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2239847
    Added Reference https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
    Added Reference https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
    Added Reference https://seclists.org/oss-sec/2023/q3/229
  • CVE Modified by [email protected]

    Sep. 13, 2024

    Action Type Old Value New Value
    Removed Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
    Removed Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
  • CVE Modified by [email protected]

    May. 22, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2950 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:3138 [No types assigned]
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Jan. 11, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html [No types assigned]
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added CWE Red Hat, Inc. CWE-125
  • Modified Analysis by [email protected]

    Nov. 02, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 20, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 11, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-42755 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-42755 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2239847 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2239847 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://seclists.org/oss-sec/2023/q3/229 No Types Assigned https://seclists.org/oss-sec/2023/q3/229 Exploit, Mailing List, Patch, Third Party Advisory
    Added CWE NIST CWE-125
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.3
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
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-2023-42755 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-2023-42755 weaknesses.

Exploit Prediction

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

0.06 }} 0.01%

score

0.30262

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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