CVE-2010-3069: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 10.5% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the (1) sid_parse and (2) dom_sid_parse functions in Samba before 3.5.5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted Windows Security ID (SID) on a file share.

Affected products

• Canonical Ubuntu Linux: version 6.06 only; version 8.04 only; version 9.04 only; version 9.10 only; version 10.04 only
• Samba Samba: from 3.0.0, up to and including 3.3.14; from 3.4.0, before 3.4.9 (fixed in 3.4.9); from 3.5.0, before 3.5.5 (fixed in 3.5.5)

Published 2010-09-15. Last modified 2026-06-16.