CVE-2013-0340
medium · 6.8expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| libexpat_project | libexpat | < 2.4.0 |
| python | python | >= 3.6.0, < 3.6.15 |
| python | python | >= 3.7.0, < 3.7.12 |
| python | python | >= 3.8.0, < 3.8.12 |
| python | python | >= 3.9.0, < 3.9.7 |
| apple | ipados | < 14.8 |
| apple | iphone_os | < 14.8 |
| apple | macos | < 11.6 |
| apple | tvos | < 15.0 |
| apple | watchos | < 8.0 |
Check a specific version with /api/v1/cve/match.
References
- http://openwall.com/lists/oss-security/2013/02/22/3
- http://seclists.org/fulldisclosure/2021/Oct/61
- http://seclists.org/fulldisclosure/2021/Oct/62
- http://seclists.org/fulldisclosure/2021/Oct/63
- http://seclists.org/fulldisclosure/2021/Sep/33
- http://seclists.org/fulldisclosure/2021/Sep/34
- http://seclists.org/fulldisclosure/2021/Sep/35
- http://seclists.org/fulldisclosure/2021/Sep/38
- http://seclists.org/fulldisclosure/2021/Sep/39
- http://seclists.org/fulldisclosure/2021/Sep/40
- http://securitytracker.com/id?1028213
- http://www.openwall.com/lists/oss-security/2013/04/12/6
- http://www.openwall.com/lists/oss-security/2021/10/07/4
- http://www.osvdb.org/90634
- http://www.securityfocus.com/bid/58233
- https://github.com/libexpat/libexpat/blob/R_2_4_1/expat/Changes
- https://lists.apache.org/thread.html/r41eca5f4f09e74436cbb05dec450fc2bef37b5d3e966aa7cc5fada6d%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702%40%3Cusers.openoffice.apache.org%3E
- https://security.gentoo.org/glsa/201701-21
- https://support.apple.com/kb/HT212804
- https://support.apple.com/kb/HT212805
- https://support.apple.com/kb/HT212807
- https://support.apple.com/kb/HT212814
- https://support.apple.com/kb/HT212815
- https://support.apple.com/kb/HT212819
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2013-0340