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Squid Proxy Cache Security Update Advisory SQUID-2019:2

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

4.3

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

Summary

Squid is prone to a denial of service vulnerability due to incorrect buffer management when processing HTTP Basic Authentication credentials.

Insight

Insight

Due to incorrect string termination the Basic authentication credentials decoder may access memory outside the decode buffer. On systems with memory access protections this can result in the Squid process being terminated unexpectedly. Resulting in a denial of service for all clients using the proxy.

Affected Software

Affected Software

Squid versions 2.x - 2.7.STABLE9, 3.x - 3.5.28 and 4.x - 4.7.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update to version 4.8 or later.

Common Vulnerabilities and Exposures (CVE)