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.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016637 advisory.

    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.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5903-1 advisory.

    It was discovered that lighttpd incorrectly handled certain inputs, which could result in a stack buffer     overflow. A remote attacker could possibly use this issue to cause a denial of service (DoS).
    (CVE-2022-22707, CVE-2022-41556)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SUSE15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE-SU-2022:0024-1 advisory.

  - 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. (CVE-2022-22707)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 10 / 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5040 advisory.

    An out-of-bounds memory access was discovered in the mod_extforward plugin of the lighttpd web server,     which may result in denial of service. For the oldstable distribution (buster), this problem has been     fixed in version 1.4.53-4+deb10u2. For the stable distribution (bullseye), this problem has been fixed in     version 1.4.59-1+deb11u1. We recommend that you upgrade your lighttpd packages. For the detailed security     status of lighttpd please refer to its security tracker page at: https://security-     tracker.debian.org/tracker/lighttpd

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
316207	Unity Linux 20.1060e / 20.1070e Security Update: lighttpd (UTSA-2026-016637)	Nessus	Unity Linux Local Security Checks	medium
172024	Ubuntu 20.04 LTS / 22.04 LTS : lighttpd vulnerabilities (USN-5903-1)	Nessus	Ubuntu Local Security Checks	high
157348	openSUSE 15 Security Update : lighttpd (openSUSE-SU-2022:0024-1)	Nessus	SuSE Local Security Checks	medium
156651	Debian DSA-5040-1 : lighttpd - security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2022-22707

medium

Tenable Plugins

medium

high

medium

medium