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CVE-2020-8517

Description

An issue was discovered in Squid before 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.


Affected Package


OS OS Version Package Name Package Version
ubuntu 19.10 squid 4.8-1ubuntu2.2
ubuntu 20.04 squid 4.9-2ubuntu4
ubuntu 20.10 squid 4.9-2ubuntu4
ubuntu 21.04 squid 4.9-2ubuntu4
ubuntu upstream squid any
ubuntu 12.04 squid3 any
ubuntu upstream squid3 any
ubuntu 16.04 squid3 3.5.12-1ubuntu7.10

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