Search for vulnerabilities
Vulnerability details: VCID-3g4r-ex56-aaaa
Vulnerability ID VCID-3g4r-ex56-aaaa
Aliases CVE-2021-33574
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
rhas Moderate https://access.redhat.com/errata/RHSA-2021:4358
cvssv3 5.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33574.json
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0012 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.0047 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
epss 0.01386 https://api.first.org/data/v1/epss?cve=CVE-2021-33574
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1965408
cvssv3.1 5.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-33574
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2021-33574
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2021-33574
archlinux High https://security.archlinux.org/AVG-1621
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33574.json
https://api.first.org/data/v1/epss?cve=CVE-2021-33574
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33574
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/
https://security.gentoo.org/glsa/202107-07
https://security.netapp.com/advisory/ntap-20210629-0005/
https://sourceware.org/bugzilla/show_bug.cgi?id=27896
https://sourceware.org/bugzilla/show_bug.cgi?id=27896#c1
1965408 https://bugzilla.redhat.com/show_bug.cgi?id=1965408
989147 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989147
AVG-1621 https://security.archlinux.org/AVG-1621
cpe:2.3:a:gnu:glibc:2.32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:gnu:glibc:2.32:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:gnu:glibc:2.33:*:*:*:*:*:*:*
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*
CVE-2021-33574 https://nvd.nist.gov/vuln/detail/CVE-2021-33574
RHSA-2021:4358 https://access.redhat.com/errata/RHSA-2021:4358
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33574.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-33574
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-33574
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-33574
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.27776
EPSS Score 0.0012
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.