UBUNTU-CVE-2025-46728
- Source
- https://ubuntu.com/security/CVE-2025-46728
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-46728.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-46728
- Related
- Published
- 2025-05-06T01:15:00Z
- Modified
- 2025-05-07T16:35:54Z
- Summary
- [none]
- Details
-
cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. Prior to version 0.20.1, the library fails to enforce configured size limits on incoming request bodies when
Transfer-Encoding: chunkedis used or when noContent-Lengthheader is provided. A remote attacker can send a chunked request without the terminating zero-length chunk, causing uncontrolled memory allocation on the server. This leads to potential exhaustion of system memory and results in a server crash or unresponsiveness. Version 0.20.1 fixes the issue by enforcing limits during parsing. If the limit is exceeded at any point during reading, the connection is terminated immediately. A short-term workaround through a Reverse Proxy is available. If updating the library immediately is not feasible, deploy a reverse proxy (e.g., Nginx, HAProxy) in front of thecpp-httplibapplication. Configure the proxy to enforce maximum request body size limits, thereby stopping excessively large requests before they reach the vulnerable library code. - References
Affected packages
Ubuntu:22.04:LTS / cpp-httplib
Package
- Name
- cpp-httplib
- Purl
- pkg:deb/ubuntu/cpp-httplib@0.10.3+ds-1?arch=source&distro=jammy
Ubuntu:24.10 / cpp-httplib
Package
- Name
- cpp-httplib
- Purl
- pkg:deb/ubuntu/cpp-httplib@0.15.3+ds-3?arch=source&distro=oracular
Ubuntu:24.04:LTS / cpp-httplib
Package
- Name
- cpp-httplib
- Purl
- pkg:deb/ubuntu/cpp-httplib@0.14.3+ds-1.1build2?arch=source&distro=noble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected