CVE-2026-121944
Gravedad CVSS v4.0:
MEDIA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
04/11/2026
Última modificación:
04/11/2026
Descripción
*** Pendiente de traducción *** sngrep through 1.9.0 contains an infinite loop vulnerability in capture_packet_reasm_ip() in src/capture.c that allows attackers to cause denial of service via crafted NFLOG TLVs. Attackers can supply a pcap file with link type NFLOG containing a non-payload TLV with length under 4, making the capture thread spin at full CPU and stop processing packets.
Impacto
Puntuación base 4.0
6.80
Gravedad 4.0
MEDIA
Puntuación base 3.x
5.50
Gravedad 3.x
MEDIA
Referencias a soluciones, herramientas e información
- https://github.com/irontec/sngrep/blob/v1.9.0/src/capture.c#L581-L598
- https://github.com/irontec/sngrep/issues/589
- https://hackmd.io/@haindpwn/sngrep-sip-payload-missing-nul-oob-read
- https://www.vulncheck.com/advisories/sngrep-through-1.9.0-infinite-loop-dos-via-crafted-nflog-tlv
- https://hackmd.io/@haindpwn/cve-2026-121943-121944-sngrep-sip-payload-missing-nul-oob-read


