CWE
119 787
Advisory Published
Updated

CVE-2022-22707: Buffer Overflow

First published: Thu Jan 06 2022(Updated: )

In lighttpd 1.4.46 through 1.4.63, the mod_extforward_Forwarded function of the mod_extforward plugin has a stack-based buffer overflow (4 bytes representing -1), as demonstrated by remote denial of service (daemon crash) in a non-default configuration. The non-default configuration requires handling of the Forwarded header in a somewhat unusual manner. Also, a 32-bit system is much more likely to be affected than a 64-bit system.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
debian/lighttpd
1.4.53-4+deb10u2
1.4.53-4+deb10u3
1.4.59-1+deb11u2
1.4.69-1
Lighttpd Lighttpd>=1.4.46<=1.4.63
Debian Debian Linux=10.0
Debian Debian Linux=11.0

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Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2022-22707.

  • What is the severity of CVE-2022-22707?

    The severity of CVE-2022-22707 is medium.

  • What is the affected software?

    The affected software is lighttpd version 1.4.46 through 1.4.63.

  • How does CVE-2022-22707 affect lighttpd?

    CVE-2022-22707 affects lighttpd by causing a stack-based buffer overflow in the mod_extforward plugin, resulting in a remote denial of service.

  • How can I fix CVE-2022-22707?

    To fix CVE-2022-22707, you should update lighttpd to version 1.4.69-1 or apply the appropriate patches provided by the vendor.

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