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Fencer Vulns
medium 4.0

CVE-2009-2906 json

smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a den…

published 2009-10-07 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2894

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.2%
EPSS 4.2% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a denial of service (infinite loop) via an unanticipated oplock break notification reply packet.

Patch / fix

  • samba samba 3.0.37, 3.2.15, 3.3.8
  • samba Debian 14, Debian 13, Debian 12 2:3.4.2-1

debian advisories DEBIAN-CVE-2009-2906

  • samba3x RHEL 5 EXTRAS 3.3.8-0.46.el5
  • libtdb RHEL 5 EXTRAS 1.1.2-46.el5
  • libtalloc RHEL 5 EXTRAS 1.2.0-46.el5
  • tdb-tools RHEL 5 EXTRAS 1.1.2-46.el5
  • libsmbclient RHEL 5 EXTRAS 3.0.34-46.el5
  • samba3x-swat RHEL 5 EXTRAS 3.3.8-0.46.el5
  • samba3x-client RHEL 5 EXTRAS 3.3.8-0.46.el5
  • samba3x-common RHEL 5 EXTRAS 3.3.8-0.46.el5

red hat advisories RHSA-2009:1585RHSA-2009:1529RHSA-2009:1528

  • samba openSUSE Tumbleweed 4.5.0-1.1
  • cifs-utils openSUSE Tumbleweed 6.5-1.5

opensuse advisories openSUSE-SU-2024:10069-1openSUSE-SU-2024:10334-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-2906 updated cvss 2.3

samba: infinite loop flaw in smbd on unexpected oplock break notification reply

  • Red Hat Desktop version 3 samba 3.0.9-1.3E.16, samba-swat 3.0.9-1.3E.16, samba-client 3.0.9-1.3E.16, samba-common 3.0.9-1.3E.16
    fixed: vendor fix RHSA-2009:1528
  • Red Hat Enterprise Linux (v. 5 server) samba 3.0.33-3.15.el5_4, samba-swat 3.0.33-3.15.el5_4, samba-client 3.0.33-3.15.el5_4, samba-common 3.0.33-3.15.el5_4
    fixed: vendor fix RHSA-2009:1529
  • Red Hat Enterprise Linux AS version 3 samba 3.0.9-1.3E.16, samba-swat 3.0.9-1.3E.16, samba-client 3.0.9-1.3E.16, samba-common 3.0.9-1.3E.16
    fixed: vendor fix RHSA-2009:1528
  • Red Hat Enterprise Linux AS version 4 samba 3.0.33-0.18.el4_8, samba-swat 3.0.33-0.18.el4_8, samba-client 3.0.33-0.18.el4_8, samba-common 3.0.33-0.18.el4_8 Red Hat Enterprise Linux Desktop (v. 5 client) samba 3.0.33-3.15.el5_4, samba-swat 3.0.33-3.15.el5_4, samba-client 3.0.33-3.15.el5_4, samba-common 3.0.33-3.15.el5_4
    fixed: vendor fix RHSA-2009:1529
  • Red Hat Enterprise Linux Desktop Supplementary (v. 5) libtdb 1.1.2-46.el5, libtalloc 1.2.0-46.el5, samba3x 3.3.8-0.46.el5, tdb-tools 1.1.2-46.el5, libsmbclient 3.0.34-46.el5, samba3x-swat 3.3.8-0.46.el5, +4 more
    fixed: vendor fix RHSA-2009:1585
  • Red Hat Enterprise Linux Desktop version 4 samba 3.0.33-0.18.el4_8, samba-swat 3.0.33-0.18.el4_8, samba-client 3.0.33-0.18.el4_8, samba-common 3.0.33-0.18.el4_8
    fixed: vendor fix RHSA-2009:1529
  • Red Hat Enterprise Linux ES version 3 samba 3.0.9-1.3E.16, samba-swat 3.0.9-1.3E.16, samba-client 3.0.9-1.3E.16, samba-common 3.0.9-1.3E.16
    fixed: vendor fix RHSA-2009:1528
  • Red Hat Enterprise Linux ES version 4 samba 3.0.33-0.18.el4_8, samba-swat 3.0.33-0.18.el4_8, samba-client 3.0.33-0.18.el4_8, samba-common 3.0.33-0.18.el4_8
    fixed: vendor fix RHSA-2009:1529
show 3 more
  • Red Hat Enterprise Linux Server Supplementary (v. 5) libtdb 1.1.2-46.el5, libtalloc 1.2.0-46.el5, samba3x 3.3.8-0.46.el5, tdb-tools 1.1.2-46.el5, libsmbclient 3.0.34-46.el5, samba3x-swat 3.3.8-0.46.el5, +4 more
    fixed: vendor fix RHSA-2009:1585
  • Red Hat Enterprise Linux WS version 3 samba 3.0.9-1.3E.16, samba-swat 3.0.9-1.3E.16, samba-client 3.0.9-1.3E.16, samba-common 3.0.9-1.3E.16
    fixed: vendor fix RHSA-2009:1528
  • Red Hat Enterprise Linux WS version 4 samba 3.0.33-0.18.el4_8, samba-swat 3.0.33-0.18.el4_8, samba-client 3.0.33-0.18.el4_8, samba-common 3.0.33-0.18.el4_8
    fixed: vendor fix RHSA-2009:1529

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.21% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.