FKIE_CVE-2021-38604

Vulnerability from fkie_nvd - Published: 2021-08-12 16:15 - Updated: 2026-06-17 04:02
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.
References
cve@mitre.orghttps://blog.tuxcare.com/cve/tuxcare-team-identifies-cve-2021-38604-a-new-vulnerability-in-glibcExploit, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GYEXYM37RCJWJ6B5KQUYQI4NZBDDYSXP/
cve@mitre.orghttps://security.gentoo.org/glsa/202208-24Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20210909-0005/Third Party Advisory
cve@mitre.orghttps://sourceware.org/bugzilla/show_bug.cgi?id=28213Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=4cc79c217744743077bf7a0ec5e0a4318f1e6641
cve@mitre.orghttps://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=b805aebd42364fe696e417808a700fdb9800c9e8
cve@mitre.orghttps://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://blog.tuxcare.com/cve/tuxcare-team-identifies-cve-2021-38604-a-new-vulnerability-in-glibcExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GYEXYM37RCJWJ6B5KQUYQI4NZBDDYSXP/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-24Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210909-0005/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://sourceware.org/bugzilla/show_bug.cgi?id=28213Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=4cc79c217744743077bf7a0ec5e0a4318f1e6641
af854a3a-2127-422b-91ae-364da2661108https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=b805aebd42364fe696e417808a700fdb9800c9e8
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
Impacted products
Vendor Product Version
gnu glibc *
fedoraproject fedora 35
oracle communications_cloud_native_core_binding_support_function 22.1.3
oracle communications_cloud_native_core_network_function_cloud_native_environment 22.1.0
oracle communications_cloud_native_core_network_repository_function 22.1.2
oracle communications_cloud_native_core_network_repository_function 22.2.0
oracle communications_cloud_native_core_security_edge_protection_proxy 22.1.1
oracle communications_cloud_native_core_unified_data_repository 22.2.0
oracle enterprise_operations_monitor 4.3
oracle enterprise_operations_monitor 4.4
oracle enterprise_operations_monitor 5.0
To clipboard 

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      "value": "In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix."
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      "value": "En librt en la Biblioteca C de GNU (tambi\u00e9n se conoce como glibc) versiones hasta 2.34, el archivo sysdeps/unix/sysv/linux/mq_notify.c, maneja inapropiadamente determinados datos NOTIFY_REMOVED, conllevando una desreferencia de puntero NULL. NOTA: esta vulnerabilidad se introdujo como efecto secundario de la correcci\u00f3n de CVE-2021-33574"
    }
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  "id": "CVE-2021-38604",
  "lastModified": "2026-06-17T04:02:25.823",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.