CVE-2023-46847
HIGHCVSS 7.5/10EPSS 88.35%
Last modified
CVE-2023-46847 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 88.35% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | >= 3.2.0.1, < 6.4 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux | 9.0 |
| Redhat | Enterprise Linux Eus | 8.6 |
| Redhat | Enterprise Linux Eus | 8.8 |
| Redhat | Enterprise Linux Eus | 9.0 |
| Redhat | Enterprise Linux Eus | 9.2 |
| Redhat | Enterprise Linux For Arm 64 | 8.0_aarch64 |
| Redhat | Enterprise Linux For Ibm Z Systems | 8.0_s390x |
| Redhat | Enterprise Linux For Power Little Endian | 8.0_ppc64le |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 8.2 |
| Redhat | Enterprise Linux Server Aus | 8.4 |
| Redhat | Enterprise Linux Server Aus | 8.6 |
| Redhat | Enterprise Linux Server Aus | 9.2 |
| Redhat | Enterprise Linux Server Tus | 8.2 |
| Redhat | Enterprise Linux Server Tus | 8.4 |
| Redhat | Enterprise Linux Server Tus | 8.6 |
| Redhat | Enterprise Linux Server Tus | 8.8 |
| Redhat | Enterprise Linux Server Tus | 9.2 |
| Redhat | Enterprise Linux Workstation | 7.0 |
References
- https://access.redhat.com/errata/RHSA-2023:6266Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6267Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6268Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6748Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6801Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6803Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6804Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6805Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6810Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6882Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6884Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7213Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7576Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7578Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-46847Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2245916Issue Tracking, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6266Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6267Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6268Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6748Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6801Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6803Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6804Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6805Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6810Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6882Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6884Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7213Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7576Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7578Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-46847Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2245916Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-46847?
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.
How severe is CVE-2023-46847?
CVE-2023-46847 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 88.35% probability of exploitation in the next 30 days.
How do I fix CVE-2023-46847?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2023
- CVE-2023-46839PCI devices can make use of a functionality called phantom f…5.3
- CVE-2023-46840Incorrect placement of a preprocessor directive in source co…4.1
- CVE-2023-46841Recent x86 CPUs offer functionality named Control-flow Enfor…6.5
- CVE-2023-46842Unlike 32-bit PV guests, HVM guests may switch freely betwee…6.5
- CVE-2023-46845EC-CUBE 3 series (3.0.0 to 3.0.18-p6) and 4 series (4.0.0 to…7.2
- CVE-2023-46846SQUID is vulnerable to HTTP request smuggling, caused by chu…5.3
- CVE-2023-46848Squid is vulnerable to Denial of Service, where a remote at…7.5
- CVE-2023-46849Using the --fragment option in certain configuration setups …7.5
- CVE-2023-4685Delta Electronics' CNCSoft-B version 1.0.0.4 and DOPSoft ver…7.8
- CVE-2023-46850Use after free in OpenVPN version 2.6.0 to 2.6.6 may lead to…9.8
- CVE-2023-46851Allura Discussion and Allura Forum importing does not restri…4.9
- CVE-2023-46852In Memcached before 1.6.22, a buffer overflow exists when pr…7.5
Are you affected by CVE-2023-46847?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST