CVE-2021-28651

Source
https://cve.org/CVERecord?id=CVE-2021-28651
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-28651.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-28651
Downstream
Related
Published
2021-05-27T12:15:08.197Z
Modified
2026-03-15T15:13:22.847964Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/squid-cache/squid

Affected ranges

Type
GIT
Repo
https://github.com/squid-cache/squid
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "33"
        }
    ]
}

Database specific

unresolved_ranges
[
    {
        "events": [
            {
                "introduced": "2.0"
            },
            {
                "fixed": "4.15"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.0"
            },
            {
                "fixed": "5.0.6"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "34"
            }
        ]
    }
]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-28651.json"