CVE-2021-3657

EPSS 3.3%CWE-119

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 3.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

18 Feb 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

n/a · isync

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://bugzilla.redhat.com/show_bug.cgi?id=2028932 https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html https://security.gentoo.org/glsa/202208-15 https://www.openwall.com/lists/oss-security/2021/12/03/1