critical9.8
CVE-2021-3657
A flaw was found in mbsync versions prior to 1.4.4.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Isync Project | Isync | before 1.4.4 |
| Fedoraproject | Fedora | Version 35 |
| Redhat | Enterprise Linux | Version 7.0 |
| Debian | Debian Linux | Version 9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- 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
- 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