CVE-2009-3721: Path Traversal
First published: Mon Sep 07 2009(Updated: )
Multiple directory traversal and buffer overflow vulnerabilities were discovered in yTNEF, and in Evolution's TNEF parser that is derived from yTNEF. A crafted email could cause these applications to write data in arbitrary locations on the filesystem, crash, or potentially execute arbitrary code when decoding attachments.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/ytnef | <2.8 | 2.8 |
| GNOME Evolution | ||
| ytnef |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=521662
- http://www.ocert.org/advisories/ocert-2009-013.html
- http://www.akitasecurity.nl/advisory.php?id=AK20090601
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=485403
- http://www.openwall.com/lists/oss-security/2009/10/27/5
- https://access.redhat.com/security/cve/CVE-2009-3721
- https://access.redhat.com/security/cve/CVE-2009-3887
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=493049
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=521662#c1
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=521662#c5
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=521662#c18
- https://github.com/Yeraze/ytnef/issues/7
- https://github.com/Yeraze/ytnef/pull/6
- https://github.com/Yeraze/ytnef/commit/eddd89c
- https://github.com/Yeraze/ytnef/issues/8
- https://github.com/Yeraze/ytnef/pull/9
- https://bugzilla.gnome.org/show_bug.cgi?id=641069
- https://git.gnome.org/browse/evolution/commit/?id=a9fb511
- https://www.cve.org/CVERecord?id=CVE-2009-3721 https://nvd.nist.gov/vuln/detail/CVE-2009-3721
- https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2009-3721.json
Frequently Asked Questions
What is the severity of CVE-2009-3721?
CVE-2009-3721 is considered a critical vulnerability due to its potential to allow remote code execution and system crashes.
How do I fix CVE-2009-3721?
To remediate CVE-2009-3721, upgrade yTNEF to version 2.8 or later, and ensure that GNOME Evolution is also updated.
What applications are affected by CVE-2009-3721?
CVE-2009-3721 affects the yTNEF library and the Evolution email client’s TNEF parser.
Can CVE-2009-3721 lead to data loss?
Yes, CVE-2009-3721 can result in data loss as it may write data to arbitrary locations on the filesystem.
Is CVE-2009-3721 a common vulnerability?
CVE-2009-3721 is not common but has significant implications for users of affected software if not mitigated.
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