GNU oSIP 4.1.0 libosip2 osipparser2/osip_body.c osip_body_to_str SIP Message memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in GNU oSIP 4.1.0. Impacted is the function osip_body_to_str of the file osipparser2/osip_body.c of the component libosip2. Executing a manipulation as part of SIP Message can lead to memory corruption. This vulnerability appears as CVE-2016-10326. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in GNU oSIP 4.1.0. It has been declared as problematic. This vulnerability affects the function osip_body_to_str of the file osipparser2/osip_body.c of the component libosip2. The manipulation as part of a SIP Message leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. CVE summarizes:

In libosip2 in GNU oSIP 4.1.0, a malformed SIP message can lead to a heap buffer overflow in the osip_body_to_str() function defined in osipparser2/osip_body.c, resulting in a remote DoS.

The bug was discovered 09/02/2016. The weakness was presented 04/13/2017 (Website). The advisory is shared for download at savannah.gnu.org. This vulnerability was named CVE-2016-10326 since 04/13/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 223 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99403 (Debian DLA-898-1 : libosip2 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169969 (SUSE Enterprise Linux Security Update for libosip2 (SUSE-SU-2017:1188-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99403) and SecurityFocus (BID 92921†). See VDB-99806, VDB-99807 and VDB-99841 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍

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Nessus ID: 99403
Nessus Name: Debian DLA-898-1 : libosip2 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for libosip2 openSUSE-SU-2017:1127-1 (libosip2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

09/02/2016 🔍
09/13/2016 +11 days 🔍
04/13/2017 +212 days 🔍
04/13/2017 +0 days 🔍
04/13/2017 +0 days 🔍
04/14/2017 +1 days 🔍
04/16/2017 +2 days 🔍
04/17/2017 +1 days 🔍
08/30/2020 +1231 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: savannah.gnu.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10326 (🔍)
GCVE (CVE): GCVE-0-2016-10326
GCVE (VulDB): GCVE-100-99808

OVAL: 🔍

SecurityFocus: 92921 - Libosip Multiple Denial of Service Vulnerabilities
OSVDB: - CVE-2016-10326 - GNU - oSIP - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 04/14/2017 11:02
Updated: 08/30/2020 17:01
Changes: 04/14/2017 11:02 (73), 08/30/2020 17:01 (13)
Complete: 🔍
Cache ID: 216:C8F:103

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