CVE-2023-46847
Squid: denial of service in http digest authentication
CVSS Score
8.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-120 |
| Published | Nov 3, 2023 |
| Last Updated | Feb 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 6 Extended Lifecycle Support
All versions affected Red Hat / Red Hat Enterprise Linux 6 Extended Lifecycle Support
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7.6 Advanced Update Support(Disable again in 2026 - SPRHEL-7118)
All versions affected Red Hat / Red Hat Enterprise Linux 7.7 Advanced Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6266 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6267 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6268 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6748 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6801 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6803 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6804 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6805 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6810 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6882 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6884 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:7213 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:7576 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:7578 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-46847 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2245916 github.com: https://github.com/squid-cache/squid/security/advisories/GHSA-phqj-m8gv-cq4g lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html security.netapp.com: https://security.netapp.com/advisory/ntap-20231130-0002/