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-2011-3193 low priority: Ubuntu including 1 source packages (qt4-x11), 7 status rows across 7 suites (hardy, lucid, maverick, natty, oneiric, precise, upstream): released 3, ignored 2, not-affected 2.
Heap-based buffer overflow in the Lookup_MarkMarkPos function in the HarfBuzz module (harfbuzz-gpos.c), as used by Qt before 4.7.4 and Pango, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted font file.