CVE-2019-12527

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Source
https://cve.org/CVERecord?id=CVE-2019-12527
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12527.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-12527
Downstream
Related
Published
2019-07-11T19:15:13.097Z
Modified
2026-03-15T22:26:58.062264Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.

References

Affected packages

Git / github.com/squid-cache/squid

Affected ranges

Type
GIT
Repo
https://github.com/squid-cache/squid
Events
Introduced
787b41c3b0ef9b7330032a1947c5f93bd050f32a
Last affected
2e17b02616d37206ba9cccc53c20667624fbef9f
Database specific 
{
    "versions": [
        {
            "introduced": "4.0.23"
        },
        {
            "last_affected": "4.7"
        }
    ]
}

Affected versions

Other
SQUID_4_0_23
SQUID_4_0_24
SQUID_4_0_25
SQUID_4_1
SQUID_4_2
SQUID_4_3
SQUID_4_4
SQUID_4_5
SQUID_4_6
SQUID_4_7

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12527.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "29"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "19.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.4"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.6"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.4"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.6"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.4"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.6"
            }
        ]
    }
]