Vulnerabilidades / CVE-2021-3657

crítica

CVE-2021-3657

A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate ...

Publicada Modificada CWE 119
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Descripción

A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
alpine 3.15isync1.4.4-r0
alpine 3.16isync1.4.4-r0
alpine 3.17isync1.4.4-r0
alpine 3.18isync1.4.4-r0
alpine 3.19isync1.4.4-r0
alpine 3.20isync1.4.4-r0
alpine 3.21isync1.4.4-r0
alpine 3.22isync1.4.4-r0
alpine 3.23isync1.4.4-r0
alpine 3.24isync1.4.4-r0
alpine edgeisync1.4.4-r0
debian 10isync1.3.0-2.2~deb10u2
Mostrar las 27 entradas de 27 fuentes
FuentePaqueteCorregido en
alpine 3.15isync1.4.4-r0
alpine 3.16isync1.4.4-r0
alpine 3.17isync1.4.4-r0
alpine 3.18isync1.4.4-r0
alpine 3.19isync1.4.4-r0
alpine 3.20isync1.4.4-r0
alpine 3.21isync1.4.4-r0
alpine 3.22isync1.4.4-r0
alpine 3.23isync1.4.4-r0
alpine 3.24isync1.4.4-r0
alpine edgeisync1.4.4-r0
debian 10isync1.3.0-2.2~deb10u2
debian 11isync1.3.0-2.2+deb11u1
debian 12isync1.4.4-1
debian 13isync1.4.4-1
debian 14isync1.4.4-1
debian 9isync1.2.1-2+deb9u1
echoisync1.4.4-1
rapidfort ubuntu 20.04isyncsin corrección indicada
rapidfort ubuntu 22.04isyncsin corrección indicada
rapidfort ubuntu 24.04isyncsin corrección indicada
ubuntu 18.04-ESMisyncsin corrección indicada
ubuntu 20.04-ESMisyncsin corrección indicada
ubuntu 22.04isyncsin corrección indicada
ubuntu 24.04isyncsin corrección indicada
ubuntu 26.04isyncsin corrección indicada
ubuntu 26.10isyncsin corrección indicada

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.