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-2012-4432 medium priority: Ubuntu including 1 source packages (optipng), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): not-affected 5, released 1.
Use-after-free vulnerability in opngreduc.c in OptiPNG Hg and 0.7.x before 0.7.3 might allow remote attackers to execute arbitrary code via unspecified vectors related to "palette reduction."