High [CVE-2023-46847] Squid: denial of service in http digest authentication
This high-severity Red Hat Linux advisory covers CVE-2023-46847 affecting Red Hat Enterprise Linux 6 Extended Lifecycle Support, Red Hat Enterprise Linux 7.6 Advanced Update Support, Red Hat Enterprise Linux 7.7 Advanced Update Support.
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Summary
Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.
Affected products named by the advisory: Red Hat Enterprise Linux 6 Extended Lifecycle Support; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 7.6 Advanced Update Support; Red Hat Enterprise Linux 7.7 Advanced Update Support; and 11 more.
Affected products named by the advisory: Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.2 Telecommunications Update Service; Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions; and 5 more.
- 3.2.0.1 before 6.4
Official advisory · high-confidence parse· fetched 58 minutes ago·verify at source
Mitigation
Upgrade to a fixed release: 6.4. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 58 minutes ago·verify at source
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