critical
9.8
CWE
190 787 681
Advisory Published
CVE Published
Updated

CVE-2021-27219: Integer Overflow

First published: Thu Feb 04 2021(Updated: )

An integer wraparound was discovered in glib due to passing a 64 bit sized value to function g_memdup() which accepts a 32 bits number as argument. An attacker may abuse this flaw when an application linked against the glib library uses g_bytes_new() function or possibly other functions that use g_memdup() underneath and accept a 64 bits argument as size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/glib2<0:2.28.8-11.el6_10
0:2.28.8-11.el6_10
redhat/glib2<0:2.56.1-9.el7_9
0:2.56.1-9.el7_9
redhat/glib2<0:2.42.2-6.el7_2
0:2.42.2-6.el7_2
redhat/glib2<0:2.46.2-5.el7_3
0:2.46.2-5.el7_3
redhat/glib2<0:2.50.3-4.el7_4
0:2.50.3-4.el7_4
redhat/glib2<0:2.56.1-5.el7_6
0:2.56.1-5.el7_6
redhat/glib2<0:2.56.1-6.el7_7
0:2.56.1-6.el7_7
redhat/mingw-glib2<0:2.66.7-2.el8
0:2.66.7-2.el8
redhat/glib2<0:2.56.4-10.el8_4
0:2.56.4-10.el8_4
redhat/glib2<0:2.56.4-8.el8_1
0:2.56.4-8.el8_1
redhat/glib2<0:2.56.4-8.el8_2.1
0:2.56.4-8.el8_2.1
redhat/redhat-virtualization-host<0:4.3.16-20210615.0.el7_9
0:4.3.16-20210615.0.el7_9
redhat/redhat-virtualization-host<0:4.4.6-20210615.0.el8_4
0:4.4.6-20210615.0.el8_4
redhat/glib<2.67.3
2.67.3
redhat/glib<2.66.6
2.66.6
GNOME GLib<2.66.6
GNOME GLib>=2.67.0<2.67.3
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Netapp Active Iq Unified Manager Vmware Vsphere
Netapp Cloud Backup
Netapp E-series Performance Analyzer
Broadcom Brocade Fabric Operating System Firmware
Debian Debian Linux=9.0
IBM CLM<=6.0.6.1
IBM CLM<=6.0.6
IBM ELM<=7.0.2
IBM ELM<=7.0
IBM ELM<=7.0.1
IBM Engineering Requirements Quality Assistant<=1.0
IBM Engineering Requirements Quality Assistant On-Premises<=All
IBM EWM<=7.0.2
IBM EWM<=7.0.1
IBM RTC<=6.0.2
IBM RTC<=6.0.6.1
IBM EWM<=7.0
IBM RTC<=6.0.6
IBM Engineering Systems Design Rhapsody<=All
IBM DOORS Next<=7.0.2
IBM DOORS Next<=7.0
IBM DOORS Next<=7.0.1
IBM RDNG<=6.0.6.1
IBM RDNG<=6.0.6

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2021-27219?

    CVE-2021-27219 is a vulnerability in GNOME GLib that could allow a remote attacker to cause a denial of service.

  • What is the severity of CVE-2021-27219?

    The severity of CVE-2021-27219 is critical, with a severity value of 9.8.

  • How do I fix CVE-2021-27219?

    To fix CVE-2021-27219, update to version 2.67.3 of the glib library or the appropriate version for your operating system.

  • Where can I find more information about CVE-2021-27219?

    You can find more information about CVE-2021-27219 in the GitLab issue and the Red Hat bugzilla.

  • What are the CWEs associated with CVE-2021-27219?

    The CWEs associated with CVE-2021-27219 are CWE-190, CWE-787, and CWE-681.

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