CVE-2026-48691
FastNetMon Community Edition through 1.2.9 contains an integer overflo ...
Sévérité par source
Le label propre à Trivy est CRITICAL. Critique selon NVD. Plus basse selon Ubuntu (moyenne).
Description
FastNetMon Community Edition through 1.2.9 contains an integer overflow in the BGP AS_PATH attribute encoder. In src/bgp_protocol.hpp, the IPv4UnicastAnnounce::get_attributes() function computes attribute_length as 'sizeof(bgp_as_path_segment_element_t) + this->as_path_asns.size() * sizeof(uint32_t)' and stores it in a uint8_t field (line 600-605). Since uint8_t can only hold values 0-255, an AS_PATH containing more than 63 ASNs (2 + 64*4 = 258 > 255) causes silent truncation. The truncated length is used for buffer sizing, while the actual data written is the full untruncated amount, resulting in a heap buffer overflow. Similarly, the path_segment_length field at line 621 is also uint8_t, truncating with more than 255 ASNs.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| debian 12 | fastnetmon | pas de correctif indiqué |
| debian 13 | fastnetmon | 1.2.9-0+deb13u1 |
| debian 14 | fastnetmon | 1.2.9-1 |
| echo | fastnetmon | 1.2.9-0+deb13u1 |
| rapidfort debian 12 | fastnetmon | 0:1.2.9-0+deb13u1, 0:1.2.9-1 |
| rapidfort debian 13 | fastnetmon | 0:1.2.9-0+deb13u1, 0:1.2.9-1 |
| rapidfort fedora 43 | fastnetmon | 1.2.9-2.fc43 |
| rapidfort Oracle Linux 10 | fastnetmon | pas de correctif indiqué |
| rapidfort Oracle Linux 9 | fastnetmon | pas de correctif indiqué |
| rapidfort ubuntu 20.04 | fastnetmon | pas de correctif indiqué |
| rapidfort ubuntu 22.04 | fastnetmon | pas de correctif indiqué |
| rapidfort ubuntu 24.04 | fastnetmon | pas de correctif indiqué |
Afficher les 14 entrées de 14 sources
| Source | Paquet | Corrigé en |
|---|---|---|
| debian 12 | fastnetmon | pas de correctif indiqué |
| debian 13 | fastnetmon | 1.2.9-0+deb13u1 |
| debian 14 | fastnetmon | 1.2.9-1 |
| echo | fastnetmon | 1.2.9-0+deb13u1 |
| rapidfort debian 12 | fastnetmon | 0:1.2.9-0+deb13u1, 0:1.2.9-1 |
| rapidfort debian 13 | fastnetmon | 0:1.2.9-0+deb13u1, 0:1.2.9-1 |
| rapidfort fedora 43 | fastnetmon | 1.2.9-2.fc43 |
| rapidfort Oracle Linux 10 | fastnetmon | pas de correctif indiqué |
| rapidfort Oracle Linux 9 | fastnetmon | pas de correctif indiqué |
| rapidfort ubuntu 20.04 | fastnetmon | pas de correctif indiqué |
| rapidfort ubuntu 22.04 | fastnetmon | pas de correctif indiqué |
| rapidfort ubuntu 24.04 | fastnetmon | pas de correctif indiqué |
| ubuntu 24.04 | fastnetmon | pas de correctif indiqué |
| ubuntu 26.04 | fastnetmon | pas de correctif indiqué |
Références
- https://github.com/pavel-odintsov/fastnetmon
- https://github.com/pavel-odintsov/fastnetmon/blob/master/src/bgp_protocol.hpp
- https://github.com/pavel-odintsov/fastnetmon/commit/94c66d5b100c42fb8bd10a22ca595e46895d60d0
- https://github.com/pavel-odintsov/fastnetmon/pull/1054
- https://lorikeetsecurity.com/blog/fastnetmon-cve-2026-48691-bgp-as-path-overflow
- https://ubuntu.com/security/notices/USN-8429-1
- https://www.cve.org/CVERecord?id=CVE-2026-48691