CVE-2023-46847
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 78.5% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 78.5% in the next 30 days (EPSS).
- Severity: 8.6 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 78.5% · EPSS, next 30 days
- Weakness
- CWE-120 · Classic buffer overflow
- Record status
- Modified
Affected
- squid-cache Squid < 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
Attack profile CVSS 3.1 · 8.6
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-46847.md and follow it. Check whether this project is affected by CVE-2023-46847. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/squid-cache/squid/security/advisories/GHSA-phqj-m8gv-cq4g
- https://github.com/squid-cache/squid/security/advisories/GHSA-phqj-m8gv-cq4g
References
- https://access.redhat.com/errata/RHSA-2023:6266
- https://access.redhat.com/errata/RHSA-2023:6267
- https://access.redhat.com/errata/RHSA-2023:6268
- https://access.redhat.com/errata/RHSA-2023:6748
- https://access.redhat.com/errata/RHSA-2023:6801
- https://access.redhat.com/errata/RHSA-2023:6803
- https://access.redhat.com/errata/RHSA-2023:6804
- https://access.redhat.com/errata/RHSA-2023:6805
- https://access.redhat.com/errata/RHSA-2023:6810
- https://access.redhat.com/errata/RHSA-2023:6882
- https://access.redhat.com/errata/RHSA-2023:6884
- https://access.redhat.com/errata/RHSA-2023:7213
- https://access.redhat.com/errata/RHSA-2023:7576
- https://access.redhat.com/errata/RHSA-2023:7578
- https://access.redhat.com/security/cve/CVE-2023-46847
- https://bugzilla.redhat.com/show_bug.cgi?id=2245916
- https://github.com/squid-cache/squid/security/advisories/GHSA-phqj-m8gv-cq4g
- https://access.redhat.com/errata/RHSA-2023:6266
- https://access.redhat.com/errata/RHSA-2023:6267
- https://access.redhat.com/errata/RHSA-2023:6268
- https://access.redhat.com/errata/RHSA-2023:6748
- https://access.redhat.com/errata/RHSA-2023:6801
- https://access.redhat.com/errata/RHSA-2023:6803
- https://access.redhat.com/errata/RHSA-2023:6804
- https://access.redhat.com/errata/RHSA-2023:6805