Out-of-Bounds Read in Squid's WCCP Protocol Allows Information Disclosure
CVE-2021-28116

3.7LOW

Key Information:

Vendor

Squid-cache

Status
Squid
Vendor
CVE Published:
9 March 2021

What is CVE-2021-28116?

In some configurations of Squid Proxy Server versions up to 5.0.5, an out-of-bounds read vulnerability in the WCCP protocol can lead to information disclosure. This flaw can potentially be exploited in combination with other vulnerabilities to achieve remote code execution. It is crucial for organizations using Squid to address this issue promptly to safeguard their systems against possible attacks.

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References

http://www.squid-cache.org/Versions/
x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-21-157/
x_refsource_MISC
https://github.com/squid-cache/squid/security/advisories/...
x_refsource_MISC

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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