CVE-2013-1950 Denial of service in n/a

Medium 4.3 Published 9 Jul 2013 Updated 6 Aug 2024

Remote attackers can crash rpcbind via crafted Sun RPC requests in libtirpc, causing denial of service.

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

What is CVE-2013-1950?

CVE-2013-1950 is a medium-severity denial of service vulnerability in n/a, published on 9 Jul 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The svc_dg_getargs function in libtirpc 0.2.3 and earlier allows remote attackers to cause a denial of service (rpcbind crash) via a Sun RPC request with crafted arguments that trigger a free of an invalid pointer.

Weakness: CWE-399

Which versions are affected by CVE-2013-1950?

It affects 1 product.

Linux distribution packages (12)

`libtirpc` Red Hat:enterprise_linux:6::client	All versions	`0:0.2.1-6.el6_4`
`libtirpc-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`0:0.2.1-6.el6_4`
`libtirpc-devel` Red Hat:enterprise_linux:6::client	All versions	`0:0.2.1-6.el6_4`
`libtirpc` Red Hat:enterprise_linux:6::computenode	All versions	`0:0.2.1-6.el6_4`
`libtirpc-debuginfo` Red Hat:enterprise_linux:6::computenode	All versions	`0:0.2.1-6.el6_4`
`libtirpc-devel` Red Hat:enterprise_linux:6::computenode	All versions	`0:0.2.1-6.el6_4`
`libtirpc` Red Hat:enterprise_linux:6::server	All versions	`0:0.2.1-6.el6_4`
`libtirpc-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:0.2.1-6.el6_4`
`libtirpc-devel` Red Hat:enterprise_linux:6::server	All versions	`0:0.2.1-6.el6_4`
`libtirpc` Red Hat:enterprise_linux:6::workstation	All versions	`0:0.2.1-6.el6_4`
`libtirpc-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`0:0.2.1-6.el6_4`
`libtirpc-devel` Red Hat:enterprise_linux:6::workstation	All versions	`0:0.2.1-6.el6_4`

Products include Libtirpc Project Libtirpc.

How do I fix CVE-2013-1950?

Apply the vendor's patch.

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-2013-1950 being exploited?

There is no known exploitation of CVE-2013-1950 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-6g29-qg3g-jfjm, RHSA-2013:0884.