CVE-2021-28651
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- CVE-2021-28651
CVE Details
| Release Date: | 2021-05-27 | |
| Impact: | Moderate | What is this? |
Description
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.
See more information about CVE-2021-28651 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 7.4 |
| Vector String: | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H |
| Version: | 3.1 |
| Attack Vector: | Network |
| Attack Complexity: | Low |
| Privileges Required: | None |
| User Interaction: | Required |
| Scope: | Changed |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 7 (squid) | ELSA-2021-9465 | 2021-09-24 |
| Oracle Linux version 7 (squid) | ELSA-2025-14414 | 2025-09-29 |
| Oracle Linux version 8 (libecap) | ELSA-2021-4292 | 2021-11-16 |
| Oracle Linux version 8 (squid) | ELSA-2021-4292 | 2021-11-16 |
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