Resource management error in linux-nfs libtirpc



Published: 2013-07-09 | Updated: 2020-08-04
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2013-1950
CWE-ID CWE-399
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		libtirpc
Universal components / Libraries / Libraries used by multiple products

Vendor linux-nfs.org

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource management error

EUVDB-ID: #VU33685

Risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2013-1950

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libtirpc: 0.1.8 - 0.2.2

External links

http://git.infradead.org/users/steved/libtirpc.git/commitdiff/a9f437119d79a438cb12e510f3cadd4060102c9f
http://rhn.redhat.com/errata/RHSA-2013-0884.html
http://bugzilla.redhat.com/show_bug.cgi?id=948378


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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