CVE-2021-20247

EPSS 1.9%CWE-20

Vexday Risk Score

3Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS —EPSS 1.9%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

23 feb 2021Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

A flaw was found in mbsync before v1.3.5 and v1.4.1. Validations of the mailbox names returned by IMAP LIST/LSUB do not occur allowing a malicious or compromised server to use specially crafted mailbox names containing '..' path components to access data outside the designated mailbox on the opposite end of the synchronization channel. The highest threat from this vulnerability is to data confidentiality and integrity.

Productos afectados

n/a · isync/mbsync

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Referencias

https://bugzilla.redhat.com/show_bug.cgi?id=1928963 https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CAXQLCK35QGRCRENRTGKJO4VVZGUXUJJ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GVDEBZQJMWDW5JFK4NTHH6DAFNAZTESW/https://security.gentoo.org/glsa/202208-15 https://www.openwall.com/lists/oss-security/2021/02/22/1