View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2012-0841 medium priority: Ubuntu including 1 source packages (libxml2), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 5, needs-triage 1.
libxml2 before 2.8.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data.