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Vulnerabilidades / CVE-2018-6836

crítica

CVE-2018-6836

wireshark: free operation on an uninitialized memory address in wiretap/netmon.c

Publicada Modificada CWE 763
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.

Severidad por fuente

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat3.3CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según Ubuntu (media), Red Hat (baja).

Descripción

The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
Red Hatwireshark, wireshark-cli, wireshark-devel y 1 mássin corrección indicada
ubuntu 14.04wireshark2.6.3-1~ubuntu14.04.1
ubuntu 14.04-ESMwireshark2.6.3-1~ubuntu14.04.1
ubuntu 16.04wireshark2.6.3-1~ubuntu16.04.1
ubuntu 16.04-ESMwireshark2.6.3-1~ubuntu16.04.1
ubuntu 18.04wireshark2.6.3-1~ubuntu18.04.1
ubuntu 18.04-ESMwireshark2.6.3-1~ubuntu18.04.1
Mostrar las 10 entradas de 7 fuentes
FuentePaqueteCorregido en
Red Hatwiresharksin corrección indicada
Red Hatwireshark-clisin corrección indicada
Red Hatwireshark-develsin corrección indicada
Red Hatwireshark-gnomesin corrección indicada
ubuntu 14.04wireshark2.6.3-1~ubuntu14.04.1
ubuntu 14.04-ESMwireshark2.6.3-1~ubuntu14.04.1
ubuntu 16.04wireshark2.6.3-1~ubuntu16.04.1
ubuntu 16.04-ESMwireshark2.6.3-1~ubuntu16.04.1
ubuntu 18.04wireshark2.6.3-1~ubuntu18.04.1
ubuntu 18.04-ESMwireshark2.6.3-1~ubuntu18.04.1

Referencias

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.