Squid Out-of-Bounds Write in ESI Variables Causes Memory Corruption & DoS
CVE-2024-37894 Published on June 25, 2024
Squid vulnerable to heap corruption in ESI assign
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Out-of-bounds Write error when assigning ESI variables, Squid is susceptible to a Memory Corruption error. This error can lead to a Denial of Service attack.
Vulnerability Analysis
CVE-2024-37894 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2024-37894 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2024-37894
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Affected Versions
squid-cache squid:- Version >= 3.0, <= 3.5.28 is affected.
- Version >= 4.0, <= 4.16 is affected.
- Version >= 5.0, <= 5.9 is affected.
- Version >= 6.0, <= 6.9 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.