CVE-2021-33574

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Source
https://cve.org/CVERecord?id=CVE-2021-33574
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33574.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-33574
Downstream
Related
Published
2021-05-25T22:15:10.410Z
Modified
2026-07-27T04:01:04.102340619Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

The mq_notify function in the GNU C Library (aka glibc) versions 2.32 and 2.33 has a use-after-free. It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "11.0"
                },
                {
                    "last_affected": "11.70.1"
                }
            ],
            "source": "CPE_RANGE",
            "vendor_product": "netapp:e-series_santricity_os_controller",
            "cpes": [
                "cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "33"
                },
                {
                    "last_affected": "33"
                },
                {
                    "introduced": "34"
                },
                {
                    "last_affected": "34"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "fedoraproject:fedora",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/bminor/glibc

Affected ranges

Type
GIT
Repo
https://github.com/bminor/glibc
Events
Introduced
3de512be7ea6053255afed6154db9ee31d4e557a
Last affected
9826b03b747b841f5fc6de2054bf1ef3f5c4bdf3
Database specific 
{
    "extracted_events": [
        {
            "introduced": "2.32"
        },
        {
            "last_affected": "2.32"
        },
        {
            "introduced": "2.33"
        },
        {
            "last_affected": "2.33"
        }
    ],
    "source": "CPE_STRING",
    "cpe": [
        "cpe:2.3:a:gnu:glibc:2.32:*:*:*:*:*:*:*",
        "cpe:2.3:a:gnu:glibc:2.33:*:*:*:*:*:*:*"
    ]
}

Affected versions

2.*
2.32
2.33
glibc-2.*
glibc-2.32
glibc-2.32.9000
glibc-2.33

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33574.json"