An issue exists in Squid prior to 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
squid-cache squid |
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opensuse leap 15.1 |
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canonical ubuntu linux 16.04 |
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canonical ubuntu linux 18.04 |
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canonical ubuntu linux 19.10 |
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