Vulnerability · Published Feb 26, 2024 · Assigned by GitHub_M
CVE-2024-23837LibHTP unbounded folded header handling leads to denial service
High 7.5
In plain English
A high-severity resource allocation without limits in libhtp from OISF. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.2%top 31.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libhtp | 1:0.5.42-1+deb12u1 | DEBIAN-CVE-2024-23837 |
| Debian:13 | libhtp | 1:0.5.46-1 | DEBIAN-CVE-2024-23837 |
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/OISF/libhtp/security/advisories/GHSA-f9wf-rrjj-qx8m x_refsource_CONFIRM
- https://github.com/OISF/libhtp/commit/20ac301d801cdf01b3f021cca08a22a87f477c4a x_refsource_MISC
- https://redmine.openinfosecfoundation.org/issues/6444 x_refsource_MISC
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GOCOBFUTIFHOP2PZOH4ENRFXRBHIRKK4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXJIT7R53ZXROO3I256RFUWTIW4ECK6P/
- https://lists.debian.org/debian-lts-announce/2025/09/msg00009.html