9.3
CVE-2003-1564
- EPSS 1.62%
- Veröffentlicht 31.12.2003 05:00:00
- Zuletzt bearbeitet 16.06.2026 22:04:39
- Quelle cve@mitre.org
- CVE-Watchlists
- Unerledigt
libxml2, possibly before 2.5.0, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, aka the "billion laughs attack."
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 1.62% | 0.729 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 6.5 | 2.8 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
|
| nvd@nist.gov | 9.3 | 8.6 | 10 |
AV:N/AC:M/Au:N/C:C/I:C/A:C
|
CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.
http://mail.gnome.org/archives/xml/2008-August/msg00034.html
http://secunia.com/advisories/31868
http://www.reddit.com/r/programming/comments/65843/time_to_upgrade_libxml2
http://www.redhat.com/support/errata/RHSA-2008-0886.html
http://www.stylusstudio.com/xmldev/200302/post20020.html
http://xmlsoft.org/news.html