CVE-2017-12843: Input Validation
First published: Tue Aug 22 2017(Updated: )
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a crafted (1) SYNCAPPLY, (2) SYNCGET or (3) SYNCRESTORE command.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cyrus SASL | <=3.0.2 | |
| Fedora | =26 |
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Reference Links
- https://github.com/cyrusimap/cyrus-imapd/commit/53c4137bd924b954432c6c59da7572c4c5ffa901
- https://github.com/cyrusimap/cyrus-imapd/commit/5edadcfb83bf27107578830801817f9e6d0ad941
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6M32R5QPCCNT57BVH3NPV5WVJFSTDP7Q/
- https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.3.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6M32R5QPCCNT57BVH3NPV5WVJFSTDP7Q/
Frequently Asked Questions
What is the severity of CVE-2017-12843?
CVE-2017-12843 has a medium severity rating, as it allows remote authenticated users to write to arbitrary files.
How do I fix CVE-2017-12843?
To fix CVE-2017-12843, upgrade Cyrus IMAP to version 3.0.3 or later.
Who is affected by CVE-2017-12843?
CVE-2017-12843 affects users of Cyrus IMAP versions prior to 3.0.3 and Fedora 26.
What types of commands exploit CVE-2017-12843?
CVE-2017-12843 can be exploited using crafted SYNCAPPLY, SYNCGET, or SYNCRESTORE commands.
What is the impact of CVE-2017-12843?
The impact of CVE-2017-12843 includes unauthorized file write access by remote authenticated users.
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- vendor/cyrusimap
- canonical/cyrus sasl
- version/cyrus sasl/3.0.2
- vendor/fedoraproject
- canonical/fedora
- version/fedora/26