CWE
120 119
Advisory Published
Updated

CVE-2019-6258: Buffer Overflow

First published: Tue Aug 18 2020(Updated: )

D-Link DIR-822 Rev.Bx devices with firmware v.202KRb06 and older allow a buffer overflow via long MacAddress data in a /HNAP1/SetClientInfo HNAP protocol message, which is mishandled in /usr/sbin/udhcpd during reading of the /var/servd/LAN-1-udhcpd.conf file.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
D-link Dir-822 Firmware<=2.02krb06
Dlink Dir-822

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Frequently Asked Questions

  • What is the severity of CVE-2019-6258?

    The severity of CVE-2019-6258 is critical with a CVSS score of 9.8.

  • Which devices are affected by CVE-2019-6258?

    D-Link DIR-822 Rev.Bx devices with firmware v.202KRb06 and older are affected by CVE-2019-6258.

  • What is the vulnerability description of CVE-2019-6258?

    CVE-2019-6258 is a buffer overflow vulnerability that allows an attacker to trigger a buffer overflow via long MacAddress data in a HNAP protocol message, which is mishandled in /usr/sbin/udhcpd during reading of the /var/servd/LAN-1-udhcpd.conf file.

  • How can I fix CVE-2019-6258?

    To fix CVE-2019-6258, update the firmware of your D-Link DIR-822 Rev.Bx device to a version newer than v.202KRb06.

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