CVE-2013-0340
At a glance
- Severity
- Not available
- EPSS
- EPSS 19.43 % · percentile 97 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
expat 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.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 2.0 | MEDIUM 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
Weaknesses (CWE)
European references
- ENISA EUVD · EUVD-2013-0352
- GCVE · GCVE-0-2013-0340
CERT-FR advisories
- CERTFR-2026-AVI-0218 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2023-AVI-1015 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2021-AVI-719 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*< 2.4.0cpe:2.3:a:python:python:*:*:*:*:*:*:*:*≥ 3.6.0 < 3.6.15cpe:2.3:a:python:python:*:*:*:*:*:*:*:*≥ 3.7.0 < 3.7.12cpe:2.3:a:python:python:*:*:*:*:*:*:*:*≥ 3.8.0 < 3.8.12cpe:2.3:a:python:python:*:*:*:*:*:*:*:*≥ 3.9.0 < 3.9.7cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*< 14.8cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*< 14.8cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*< 11.6cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*< 15.0cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*< 8.0
Affected products
| Product | Versions |
|---|---|
| libexpat | affected 0 < 2.4.0 |
References
- http://openwall.com/lists/oss-security/2013/02/22/3
- http://www.openwall.com/lists/oss-security/2013/04/12/6
- http://www.osvdb.org/90634
- http://securitytracker.com/id?1028213
- https://security.gentoo.org/glsa/201701-21
- http://www.securityfocus.com/bid/58233
- https://support.apple.com/kb/HT212805
- https://support.apple.com/kb/HT212804
- https://support.apple.com/kb/HT212807
- https://support.apple.com/kb/HT212819
- https://support.apple.com/kb/HT212814
- https://support.apple.com/kb/HT212815
- http://seclists.org/fulldisclosure/2021/Sep/33
- http://seclists.org/fulldisclosure/2021/Sep/34
- http://seclists.org/fulldisclosure/2021/Sep/40
- http://seclists.org/fulldisclosure/2021/Sep/35
- http://seclists.org/fulldisclosure/2021/Sep/38
- http://seclists.org/fulldisclosure/2021/Sep/39
- 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
- http://www.openwall.com/lists/oss-security/2021/10/07/4
- http://seclists.org/fulldisclosure/2021/Oct/62
- http://seclists.org/fulldisclosure/2021/Oct/63
- http://seclists.org/fulldisclosure/2021/Oct/61
- https://github.com/libexpat/libexpat/blob/R_2_4_1/expat/Changes
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |