Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | samba | 2:3.5.5~dfsg-1 | — |
| Debian 13 | samba | 2:3.5.5~dfsg-1 | — |
| Debian 12 | samba | 2:3.5.5~dfsg-1 | — |
| Debian 5.0 | samba | 2:3.2.5-4lenny13 | DSA-2109-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | samba +10 | 3.5.4-68.el6_0.1 | RHSA-2010:0860 |
| RHEL 5 | libtalloc +1 | 1.2.0-52.el5_5.2 | RHSA-2010:0698 |
| RHEL 5 | libtdb +2 | 1.1.2-52.el5_5.2 | RHSA-2010:0698 |
| RHEL 5 | samba +5 | 3.0.33-3.29.el5_5.1 | RHSA-2010:0697 |
| RHEL 5 | samba3x +7 | 3.3.8-0.52.el5_5.2 | RHSA-2010:0698 |
| RHEL 4 | samba +3 | 3.0.33-0.19.el4_8.3 | RHSA-2010:0697 |
| RHEL 3 | samba +3 | 3.0.9-1.3E.18 | RHSA-2010:0697 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5.4 EUS | samba +3 | 3.0.33-3.15.el5_4.3 | RHSA-2010:0697 |
| RHEL 5.3 EUS | samba +3 | 3.0.33-3.7.el5_3.3 | RHSA-2010:0697 |
| RHEL 4.7 EUS | samba +3 | 3.0.28-0.10.el4_7.1 | RHSA-2010:0697 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.5.0-1.1 | openSUSE-SU-2024:10069-1 |
Advisories 5
- RHSA-2010:0860 Red Hat Security Advisory: samba security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0697 Red Hat Security Advisory: samba security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0698 Red Hat Security Advisory: samba3x security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2109-1 samba - buffer overflow Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10069-1 ctdb-4.5.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- HPSBUX02657 vendor-advisory
- 42885 third-party-advisory
- ADV-2010-2378 vdb-entry
- http://support.apple.com/kb/HT4723
- FEDORA-2010-14678 vendor-advisory
- http://us1.samba.org/samba/security/CVE-2010-3069.html
- 41354 third-party-advisory
- APPLE-SA-2011-06-23-1 vendor-advisory
- APPLE-SA-2011-03-21-1 vendor-advisory
- samba-sidparse-bo(61773) vdb-entry
- 20101207 VMSA-2010-0019 VMware ESX third party updates for Service Console mailing-list
- USN-987-1 vendor-advisory
- 1024434 vdb-entry
- 41447 third-party-advisory
- FEDORA-2010-14627 vendor-advisory
- 42531 third-party-advisory
- ADV-2010-3126 vdb-entry
- http://us1.samba.org/samba/history/samba-3.5.5.html
- http://www.vmware.com/security/advisories/VMSA-2010-0019.html
- SUSE-SR:2010:019 vendor-advisory
- 43212 vdb-entry
- ADV-2011-0091 vdb-entry
- FEDORA-2010-14768 vendor-advisory
- SUSE-SR:2010:018 vendor-advisory
- RHSA-2010:0860 vendor-advisory
- http://support.apple.com/kb/HT4581