VDB
CVE-2021-3657
CVE-2021-3657
PUBLISHED
CVSS 9.800000190734863 CRITICAL
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.
EPSS 3.46% · 88.2th percentile
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
3.46%
88.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| redhat | enterprise_linux | 7.0 |
| debian | debian_linux | 9.0 |
| fedoraproject | fedora | 35 |
| n/a | isync | isync 1.4.4 |
| isync_project | isync | 0 |
Timeline
- Feb 18, 2022 CVE Published
- Feb 19, 2022 EPSS Score
- Mar 4, 2022 EPSS Score
- Jun 3, 2022 EPSS Score
- Jul 2, 2022 EPSS Score
- Sep 17, 2022 EPSS Score
- Nov 8, 2022 EPSS Score
- Dec 30, 2022 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 13, 2023 EPSS Score
- Jul 27, 2023 EPSS Score
- Sep 17, 2023 EPSS Score
References
- https://www.openwall.com/lists/oss-security/2021/12/03/1 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2028932 url
- [debian-lts-announce] 20220701 [SECURITY] [DLA 3066-1] isync security update mailing-list
- https://security.gentoo.org/glsa/202208-15 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-3657 advisory