CVE-2011-0719 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can cause a denial of service in Samba by opening many files, leading to crashes or infinite loops.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2011-0719?

CVE-2011-0719 is a medium-severity denial of service vulnerability in Samba Samba, published on 1 Mar 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-119

Which versions are affected by CVE-2011-0719?

It affects 1 product.

Linux distribution packages (40)
samba Red Hat:enterprise_linux:4::asAll versions0:3.0.33-0.30.el4
samba-client Red Hat:enterprise_linux:4::asAll versions0:3.0.33-0.30.el4
samba-common Red Hat:enterprise_linux:4::asAll versions0:3.0.33-0.30.el4
samba-debuginfo Red Hat:enterprise_linux:4::asAll versions0:3.0.33-0.30.el4
samba-swat Red Hat:enterprise_linux:4::asAll versions0:3.0.33-0.30.el4
samba Red Hat:enterprise_linux:4::desktopAll versions0:3.0.33-0.30.el4
samba-client Red Hat:enterprise_linux:4::desktopAll versions0:3.0.33-0.30.el4
samba-common Red Hat:enterprise_linux:4::desktopAll versions0:3.0.33-0.30.el4
samba-debuginfo Red Hat:enterprise_linux:4::desktopAll versions0:3.0.33-0.30.el4
samba-swat Red Hat:enterprise_linux:4::desktopAll versions0:3.0.33-0.30.el4
samba Red Hat:enterprise_linux:4::esAll versions0:3.0.33-0.30.el4
samba-client Red Hat:enterprise_linux:4::esAll versions0:3.0.33-0.30.el4
samba-common Red Hat:enterprise_linux:4::esAll versions0:3.0.33-0.30.el4
samba-debuginfo Red Hat:enterprise_linux:4::esAll versions0:3.0.33-0.30.el4
samba-swat Red Hat:enterprise_linux:4::esAll versions0:3.0.33-0.30.el4
samba Red Hat:enterprise_linux:4::wsAll versions0:3.0.33-0.30.el4
samba-client Red Hat:enterprise_linux:4::wsAll versions0:3.0.33-0.30.el4
samba-common Red Hat:enterprise_linux:4::wsAll versions0:3.0.33-0.30.el4
samba-debuginfo Red Hat:enterprise_linux:4::wsAll versions0:3.0.33-0.30.el4
samba-swat Red Hat:enterprise_linux:4::wsAll versions0:3.0.33-0.30.el4
libsmbclient Red Hat:enterprise_linux:5::serverAll versions0:3.0.33-3.29.el5_6.2
libsmbclient-devel Red Hat:enterprise_linux:5::serverAll versions0:3.0.33-3.29.el5_6.2
samba Red Hat:enterprise_linux:5::serverAll versions0:3.0.33-3.29.el5_6.2
samba-client Red Hat:enterprise_linux:5::serverAll versions0:3.0.33-3.29.el5_6.2
samba-common Red Hat:enterprise_linux:5::serverAll versions0:3.0.33-3.29.el5_6.2
samba-debuginfo Red Hat:enterprise_linux:5::serverAll versions0:3.0.33-3.29.el5_6.2
samba-swat Red Hat:enterprise_linux:5::serverAll versions0:3.0.33-3.29.el5_6.2
samba3x Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
samba3x-client Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
samba3x-common Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
samba3x-debuginfo Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
samba3x-doc Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
samba3x-domainjoin-gui Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
samba3x-swat Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
samba3x-winbind Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
samba3x-winbind-devel Red Hat:enterprise_linux:5::serverAll versions0:3.5.4-0.70.el5_6.1
libsmbclient Red Hat:enterprise_linux:6::clientAll versions0:3.5.4-68.el6_0.2
libsmbclient-devel Red Hat:enterprise_linux:6::clientAll versions0:3.5.4-68.el6_0.2
samba Red Hat:enterprise_linux:6::clientAll versions0:3.5.4-68.el6_0.2
samba-client Red Hat:enterprise_linux:6::clientAll versions0:3.5.4-68.el6_0.2

Products include Samba Samba.

How do I fix CVE-2011-0719?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2011-0719 being exploited?

There is no known exploitation of CVE-2011-0719 in the wild and no public exploit code.

All Samba Samba vulnerabilities

Sources

Also known as DEBIAN-CVE-2011-0719, DSA-2175-1, ECHO-7fb9-499c-305c, GHSA-px2g-jrgw-pwrg, RHSA-2011:0305, RHSA-2011:0306.

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