high
7.8
CWE
119 125
Advisory Published
Updated

CVE-2020-24977: Buffer Overflow

First published: Fri Sep 04 2020(Updated: )

GNOME libxml2 is vulnerable to a buffer overflow, caused by improper bounds checking by the xmlEncodeEntitiesInternal function in libxml2/entities.c. By persuading a victim to open a specially-crafted file, a remote attacker could overflow a buffer and execute arbitrary code on the system.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
IBM Security Verify Access<=10.0.0
Xmlsoft Libxml2=2.9.10
Debian Debian Linux=9.0
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Fedoraproject Fedora=33
openSUSE Leap=15.1
openSUSE Leap=15.2
Netapp Active Iq Unified Manager Windows>=7.3
Netapp Active Iq Unified Manager Vmware Vsphere>=9.5
NetApp Clustered Data ONTAP
Netapp Clustered Data Ontap Antivirus Connector
Netapp Inventory Collect Tool
Netapp Manageability Software Development Kit
Netapp Snapdrive Unix
Netapp Snapdrive Windows
Netapp Hci H410c Firmware
Netapp Hci H410c
Oracle Communications Cloud Native Core Network Function Cloud Native Environment=1.10.0
Oracle Enterprise Manager Base Platform=13.4.0.0
Oracle Enterprise Manager Base Platform=13.5.0.0
Oracle Enterprise Manager Ops Center=12.4.0.0
Oracle HTTP Server=12.2.1.3.0
Oracle HTTP Server=12.2.1.4.0
Oracle Mysql Workbench<=8.0.26
Oracle PeopleSoft Enterprise PeopleTools=8.58
Oracle Real User Experience Insight=13.4.1.0
Oracle Real User Experience Insight=13.5.1.0

Remedy

https://gitlab.gnome.org/GNOME/libxml2/-/commit/50f06b3efb638efb0abd95dc62dca05ae67882c2

Remedy

https://gitlab.gnome.org/GNOME/libxml2/-/issues/178

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

Remedy

https://www.oracle.com/security-alerts/cpuoct2021.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    The vulnerability ID is CVE-2020-24977.

  • What is the severity of CVE-2020-24977?

    The severity of CVE-2020-24977 is high with a CVSS score of 7.8.

  • What is the affected software of CVE-2020-24977?

    The affected software includes IBM Security Verify Access, Xmlsoft Libxml2, Debian Debian Linux, Fedoraproject Fedora, openSUSE Leap, NetApp products, Apple watchOS, Apple iPadOS, Apple macOS Big Sur, Oracle products, and others.

  • How does CVE-2020-24977 exploit the vulnerability?

    CVE-2020-24977 exploits a buffer overflow vulnerability in the xmlEncodeEntitiesInternal function in libxml2/entities.c by persuading a victim to open a specially-crafted file, allowing a remote attacker to execute arbitrary code on the system.

  • Is there a fix available for CVE-2020-24977?

    Yes, a fix is available for CVE-2020-24977. It is recommended to update to the latest version of the affected software or apply the necessary patches provided by the vendor.

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