Red Hat rpcbind 0.2.3 libtirpc svc_dg_getargs UDP Packet resource management

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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Red Hat rpcbind 0.2.3. It has been classified as problematic. Affected by this vulnerability is the function svc_dg_getargs in the library libtirpc of the component rpcbind. The manipulation as part of UDP Packet leads to resource management. This vulnerability is documented as CVE-2013-1950. Additionally, an exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Red Hat rpcbind 0.2.3 and classified as critical. This issue affects the function svc_dg_getargs in the library libtirpc of the component rpcbind. The manipulation as part of a UDP Packet leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

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.

The weakness was released 07/16/2013 by Sean Verity as confirmed exploit (Website). The advisory is shared at exploit-db.com. The public release happened without involvement of Red Hat. The identification of this vulnerability is CVE-2013-1950 since 02/19/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed by Sean Verity and been published immediately after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 68830 (Oracle Linux 6 : libtirpc (ELSA-2013-0884)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124761 (F5 BIG-IP ASM Multiple Denial of Service Vulnerabilities (SOL47098834, SOL19157044)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at rhn.redhat.com.

The vulnerability is also documented in the databases at X-Force (83709), Exploit-DB (26887), Tenable (68830), SecurityFocus (BID 59365†) and OSVDB (95447†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Sean Verity
Download: 🔍

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Nessus ID: 68830
Nessus Name: Oracle Linux 6 : libtirpc (ELSA-2013-0884)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881743
OpenVAS Name: CentOS Update for libtirpc CESA-2013:0884 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Exploit Delay Time: 🔍

Patch: rhn.redhat.com

Timelineinfo

02/19/2013 🔍
04/22/2013 +62 days 🔍
04/22/2013 +0 days 🔍
06/03/2013 +42 days 🔍
07/09/2013 +36 days 🔍
07/12/2013 +3 days 🔍
07/16/2013 +4 days 🔍
07/16/2013 +0 days 🔍
07/16/2013 +0 days 🔍
07/22/2013 +6 days 🔍
11/26/2024 +4145 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: exploit-db.com
Researcher: Sean Verity
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-1950 (🔍)
GCVE (CVE): GCVE-0-2013-1950
GCVE (VulDB): GCVE-100-9581

OVAL: 🔍

X-Force: 83709
SecurityFocus: 59365 - libtirpc 'svc_getargs()' Function Denial of Service Vulnerability
OSVDB: 95447
Vulnerability Center: 39815 - libtirpc svc_dg_getargs() Library Remote DoS Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/22/2013 17:50
Updated: 11/26/2024 03:04
Changes: 07/22/2013 17:50 (85), 05/01/2017 11:30 (2), 05/19/2021 02:34 (3), 11/26/2024 03:04 (14)
Complete: 🔍
Committer:
Cache ID: 216::103

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