CVE-2017-9233
Published: August 31, 2023Last modified: August 31, 2023
Description
XML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the parser in an infinite loop using a malformed external entity definition from an external DTD.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | expat | Not affected (2.5.0-r0) |
| Stream | expat | Not affected (2.5.0-r2) |
References
- http://www.debian.org/security/2017/dsa-3898
- http://www.openwall.com/lists/oss-security/2017/06/17/7
- http://www.securityfocus.com/bid/99276
- http://www.securitytracker.com/id/1039427
- https://github.com/libexpat/libexpat/blob/master/expat/Changes
- https://libexpat.github.io/doc/cve-2017-9233/
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
- https://support.apple.com/HT208112
- https://support.apple.com/HT208113
- https://support.apple.com/HT208115
- https://support.apple.com/HT208144
- https://support.f5.com/csp/article/K03244804