LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7814-1 advisory.

    It was discovered that LibHTP did not correctly handle certain HTTP headers. A remote attacker could     possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu     18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2024-23837)

    It was discovered that LibHTP did not correctly parse certain HTTP requests. A remote attacker could     possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu     22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-28871)

    It was discovered that LibHTP did not correctly parse certain HTTP requests. A remote attacker could     possibly use this issue to cause a denial of service. (CVE-2024-45797)

    It was discovered that LibHTP did not correctly handle certain memory operations. A remote attacker could     possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu     22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.04. (CVE-2025-53537)

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 Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4295 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4295-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Adrian Bunk     September 08, 2025                            https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : libhtp     Version        : 1:0.5.36-1+deb11u1     CVE ID         : CVE-2024-23837 CVE-2024-45797

    Multiple cases of denial of service due to excessive CPU time and memory     utilization have been fixed in LibHTP, a parser for the HTTP protocol     mainly used by the network analysis and threat detection software Suricata.

    For Debian 11 bullseye, these problems have been fixed in version     1:0.5.36-1+deb11u1.

    We recommend that you upgrade your libhtp packages.

    For the detailed security status of libhtp please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libhtp

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing     time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46. (CVE-2024-23837)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2024:0150-1 advisory.

    - CVE-2024-23837: excessive processing time of HTTP headers can       lead to denial of service (boo#1220403)

Tenable has extracted the preceding description block directly from the SUSE 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 Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-7b063bce0a advisory.

    This update fixes: CVE-2024-23835,  CVE-2024-23836, CVE-2024-23837, CVE-2024-23839, CVE-2024-24568.

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-bd4eed8466 advisory.

    This update fixes: CVE-2024-23835,  CVE-2024-23836, CVE-2024-23837, CVE-2024-23839, CVE-2024-24568.


Tenable has extracted the preceding description block directly from the Fedora 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 version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 979dc373-d27d-11ee-8b84-b42e991fc52e advisory.

  - Suricata team reports: Multiple vulnerabilities fixed in the last release of suricata. No details have     been disclosed yet (CVE-2024-23835, CVE-2024-23836, CVE-2024-23837, CVE-2024-23839, CVE-2024-24568)

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

ID	Name	Product	Family	Severity
269999	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 : LibHTP vulnerabilities (USN-7814-1)	Nessus	Ubuntu Local Security Checks	high
261691	Debian dla-4295 : libhtp-dev - security update	Nessus	Debian Local Security Checks	high
227805	Linux Distros Unpatched Vulnerability : CVE-2024-23837	Nessus	Misc.	high
200104	openSUSE 15 Security Update : libhtp (openSUSE-SU-2024:0150-1)	Nessus	SuSE Local Security Checks	high
191667	Fedora 38 : suricata (2024-7b063bce0a)	Nessus	Fedora Local Security Checks	high
191666	Fedora 39 : suricata (2024-bd4eed8466)	Nessus	Fedora Local Security Checks	high
190936	FreeBSD : suricata -- multiple vulnerabilities (979dc373-d27d-11ee-8b84-b42e991fc52e)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2024-23837

high

Tenable Plugins

high

high

high

high

high

high

high