Packages
- samba -
Details
USN-544-1 fixed two vulnerabilities in Samba. Fixes for CVE-2007-5398
are unchanged, but the upstream changes for CVE-2007-4572 introduced a
regression in all releases which caused Linux smbfs mounts to fail.
Additionally, Dapper and Edgy included an incomplete patch which caused
configurations using NetBIOS to fail. A proper fix for these regressions
does not exist at this time, and so the patch addressing CVE-2007-4572
has been removed. This vulnerability is believed to be an unexploitable
denial of service, but a future update will address this issue. We
apologize for the inconvenience.
Original advisory details:
Samba developers discovered that nmbd could be made to overrun
a buffer during the processing of GETDC logon server requests.
When samba is configured as a Primary or Backup Domain Controller,
a...
USN-544-1 fixed two vulnerabilities in Samba. Fixes for CVE-2007-5398
are unchanged, but the upstream changes for CVE-2007-4572 introduced a
regression in all releases which caused Linux smbfs mounts to fail.
Additionally, Dapper and Edgy included an incomplete patch which caused
configurations using NetBIOS to fail. A proper fix for these regressions
does not exist at this time, and so the patch addressing CVE-2007-4572
has been removed. This vulnerability is believed to be an unexploitable
denial of service, but a future update will address this issue. We
apologize for the inconvenience.
Original advisory details:
Samba developers discovered that nmbd could be made to overrun
a buffer during the processing of GETDC logon server requests.
When samba is configured as a Primary or Backup Domain Controller,
a remote attacker could send malicious logon requests and possibly
cause a denial of service. (CVE-2007-4572)
Alin Rad Pop of Secunia Research discovered that nmbd did not properly
check the length of netbios packets. When samba is configured as a WINS
server, a remote attacker could send multiple crafted requests resulting
in the execution of arbitrary code with root privileges. (CVE-2007-5398)
Update instructions
In general, a standard system upgrade is sufficient to effect the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 7.10 gutsy | samba – 3.0.26a-1ubuntu2.2 | ||
| 7.04 feisty | samba – 3.0.24-2ubuntu1.4 | ||
| 6.10 edgy | samba – 3.0.22-1ubuntu4.4 | ||
| 6.06 dapper | samba – 3.0.22-1ubuntu3.5 | ||
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