CVE-2024-23638 Details
Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when generating error pages for Client Manager reports. Squid older than 5.0.5 have not been tested and should be assumed to be vulnerable. All Squid-5.x up to and including 5.9 are vulnerable. All Squid-6.x up to and including 6.5 are vulnerable. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. As a workaround, prevent access to Cache Manager using Squid's main access control: `http_access deny manager`.
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Exploit prediction scoring system (EPSS) score for CVE-2024-23638
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
14.31 Probability of exploitation activity being observed over the next 30 days (94th percentile)
CVSS score for CVE-2024-23638
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
6.5 Medium
Products affected by CVE-2024-23638
Squid 6.2
Squid 6.3
Squid 6.4
Squid 6.5
Squid 5.0.1
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2024-23638 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
SC 53,253 20.67%
PK 52,996 20.57%
US 41,368 16.06%
AE 25,829 10.03%
IR 17,171 6.67%
JP 10,081 3.91%
TH 6,389 2.48%
IN 6,276 2.44%
DE 5,095 1.98%
FR 5,017 1.95%

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CVE-2024-23638 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 33,876 77.76%
Telecommunications 9,095 20.88%
Government/Politics 156 0.36%
Education 152 0.35%
Finance 86 0.20%
Media/Entertainment 43 0.10%
Manufacturing 38 0.09%
Business Services 24 0.06%
Retail 22 0.05%
Utilities 13 0.03%

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