CVE-2003-1564
libxml2: billion laughs DoS attack
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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."
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2003-12-31 CVE Published
- 2008-09-02 CVE Reserved
- 2024-02-06 EPSS Updated
- 2024-08-08 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| http://secunia.com/advisories/31868 | Broken Link | |
| http://www.reddit.com/r/programming/comments/65843/time_to_upgrade_libxml2 | Issue Tracking | |
| http://www.stylusstudio.com/xmldev/200302/post20020.html | Broken Link | |
| http://xmlsoft.org/news.html | Release Notes |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://mail.gnome.org/archives/xml/2008-August/msg00034.html | 2024-02-02 |
| URL | Date | SRC |
|---|---|---|
| http://www.redhat.com/support/errata/RHSA-2008-0886.html | 2024-02-02 | |
| https://access.redhat.com/security/cve/CVE-2003-1564 | 2008-09-11 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=461107 | 2008-09-11 |