Buffer overflow in Samba - CVE-2011-0719
Published: March 2, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU45287
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2011-0719
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Samba 3.x before 3.3.15, 3.4.x before 3.4.12, and 3.5.x before 3.5.7 does not perform range checks for file descriptors before use of the FD_SET macro, which allows remote attackers to cause a denial of service (stack memory corruption, and infinite loop or daemon crash) by opening a large number of files, related to (1) Winbind or (2) smbd.
Affected software
Samba
Ubuntu
Slackware Linux
samba (Ubuntu package)
Ubuntu
Slackware Linux
samba (Ubuntu package)
How to mitigate CVE-2011-0719
Install update from vendor's website.
samba (Ubuntu package) - addressed in versions 3.0.22-1ubuntu3.14, 3.0.28a-1ubuntu4.14, 2:3.4.0-3ubuntu5.8, 2:3.4.7~dfsg-1ubuntu3.4, 2:3.5.4~dfsg-1ubuntu8.3
External References
- http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056229.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056241.html
- http://marc.info/?l=bugtraq&m=130835366526620&w=2
- http://samba.org/samba/security/CVE-2011-0719.html
- http://secunia.com/advisories/43482
- http://secunia.com/advisories/43503
- http://secunia.com/advisories/43512
- http://secunia.com/advisories/43517
- http://secunia.com/advisories/43556
- http://secunia.com/advisories/43557
- http://secunia.com/advisories/43843
- http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.593629
- http://support.apple.com/kb/HT4723
- http://www.debian.org/security/2011/dsa-2175
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:038
- http://www.redhat.com/support/errata/RHSA-2011-0305.html
- http://www.redhat.com/support/errata/RHSA-2011-0306.html
- http://www.samba.org/samba/history/samba-3.3.15.html
- http://www.samba.org/samba/history/samba-3.4.12.html
- http://www.samba.org/samba/history/samba-3.5.7.html
- http://www.securityfocus.com/bid/46597
- http://www.securitytracker.com/id?1025132
- http://www.ubuntu.com/usn/USN-1075-1
- http://www.vupen.com/english/advisories/2011/0517
- http://www.vupen.com/english/advisories/2011/0518
- http://www.vupen.com/english/advisories/2011/0519
- http://www.vupen.com/english/advisories/2011/0520
- http://www.vupen.com/english/advisories/2011/0522
- http://www.vupen.com/english/advisories/2011/0541
- http://www.vupen.com/english/advisories/2011/0702
- https://bugzilla.redhat.com/show_bug.cgi?id=678328
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65724