CVE-2003-1564
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…
Does this matter?
Lower severity and a low EPSS score (1.62%). Track it; it rarely justifies an emergency change on its own.
Description
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."
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.62% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-776
- Affected
- xmlsoft/libxml2
- Source
- cve@mitre.org
References
- http://mail.gnome.org/archives/xml/2008-August/msg00034.htmlMailing List, Patch
- http://secunia.com/advisories/31868Broken Link
- http://www.reddit.com/r/programming/comments/65843/time_to_upgrade_libxml2Issue Tracking
- http://www.redhat.com/support/errata/RHSA-2008-0886.htmlBroken Link
- http://www.stylusstudio.com/xmldev/200302/post20020.htmlBroken Link
- http://xmlsoft.org/news.htmlRelease Notes
- http://mail.gnome.org/archives/xml/2008-August/msg00034.htmlMailing List, Patch
- http://secunia.com/advisories/31868Broken Link
- http://www.reddit.com/r/programming/comments/65843/time_to_upgrade_libxml2Issue Tracking
- http://www.redhat.com/support/errata/RHSA-2008-0886.htmlBroken Link
- http://www.stylusstudio.com/xmldev/200302/post20020.htmlBroken Link
- http://xmlsoft.org/news.htmlRelease Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.