CVE-2021-46784
MEDIUMCVSS 6.5/10EPSS 3.62%
Last modified
CVE-2021-46784 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a Denial of Service can occur when processing long Gopher server responses.. EPSS estimates a 3.62% chance of exploitation in the next 30 days.
Description
In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a Denial of Service can occur when processing long Gopher server responses.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | >= 3.0, <= 3.5.28 |
| Squid-Cache | Squid | >= 4.0, <= 4.17 |
| Squid-Cache | Squid | >= 5.0, < 5.6 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
| Debian | Debian Linux | 12.0 |
References
- http://www.squid-cache.org/Versions/v5/changesets/SQUID-2021_7.patchPatch, Vendor Advisory
- https://github.com/squid-cache/squid/commit/5e2ea2b13bd98f53e29964ca26bb0d602a8a12b9Patch, Third Party Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-f5cp-6rh3-284wMitigation, Patch, Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-46784Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221223-0007/Third Party Advisory
- http://www.squid-cache.org/Versions/v5/changesets/SQUID-2021_7.patchPatch, Vendor Advisory
- https://github.com/squid-cache/squid/commit/5e2ea2b13bd98f53e29964ca26bb0d602a8a12b9Patch, Third Party Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-f5cp-6rh3-284wMitigation, Patch, Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-46784Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221223-0007/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-46784?
In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a Denial of Service can occur when processing long Gopher server responses.
How severe is CVE-2021-46784?
CVE-2021-46784 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 3.62% probability of exploitation in the next 30 days.
How do I fix CVE-2021-46784?
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.
Are you affected by CVE-2021-46784?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST