CVE-2023-5824
Squid HTTP/HTTPS Client Denial of Service Vulnerability
Description
A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service.
INFO
Published Date :
Nov. 3, 2023, 8:15 a.m.
Last Modified :
Nov. 21, 2024, 8:42 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2023-5824 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-5824.
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 detailed repository of vulnerabilities that I discovered in The Squid Caching Proxy.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-5824 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-5824 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.
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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-2023:7465 Added Reference https://access.redhat.com/errata/RHSA-2023:7668 Added Reference https://access.redhat.com/errata/RHSA-2024:0072 Added Reference https://access.redhat.com/errata/RHSA-2024:0397 Added Reference https://access.redhat.com/errata/RHSA-2024:0771 Added Reference https://access.redhat.com/errata/RHSA-2024:0772 Added Reference https://access.redhat.com/errata/RHSA-2024:0773 Added Reference https://access.redhat.com/errata/RHSA-2024:1153 Added Reference https://access.redhat.com/security/cve/CVE-2023-5824 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2245914 Added Reference https://github.com/squid-cache/squid/security/advisories/GHSA-543m-w2m2-g255 Added Reference https://security.netapp.com/advisory/ntap-20231130-0003/ -
CVE Modified by [email protected]
Oct. 24, 2024
Action Type Old Value New Value Changed Description Squid is vulnerable to Denial of Service attack against HTTP and HTTPS clients due to an Improper Handling of Structural Elements bug. A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service. -
CVE Modified by [email protected]
Sep. 16, 2024
Action Type Old Value New Value Removed Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20231130-0003/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
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-2024:1153 [No types assigned] -
CVE Modified by [email protected]
Feb. 12, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0771 [No types assigned] Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0772 [No types assigned] Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0773 [No types assigned] -
CVE Modified by [email protected]
Jan. 25, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0397 [No types assigned] -
CVE Modified by [email protected]
Jan. 08, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0072 [No types assigned] -
CVE Modified by [email protected]
Dec. 13, 2023
Action Type Old Value New Value Added CWE Red Hat, Inc. CWE-755 Removed CWE Red Hat, Inc. CWE-400 -
CVE Modified by [email protected]
Dec. 12, 2023
Action Type Old Value New Value Removed CVSS V3.1 Red Hat, Inc. AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H Added CVSS V3.1 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
CVE Modified by [email protected]
Dec. 06, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7668 [No types assigned] -
CVE Modified by [email protected]
Nov. 30, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20231130-0003/ [No types assigned] -
CVE Modified by [email protected]
Nov. 22, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7465 [No types assigned] -
Initial Analysis by [email protected]
Nov. 13, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-5824 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-5824 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2245914 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2245914 Issue Tracking Changed Reference Type https://github.com/squid-cache/squid/security/advisories/GHSA-543m-w2m2-g255 No Types Assigned https://github.com/squid-cache/squid/security/advisories/GHSA-543m-w2m2-g255 Vendor Advisory Added CWE NIST CWE-755 Added CPE Configuration OR *cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added CWE Red Hat, Inc. CWE-400
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-5824 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-2023-5824
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.76 }} 0.42%
score
0.87652
percentile