Infradead OpenConnect up to 3.17 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Infradead OpenConnect. It has been rated as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of service via a crafted greeting banner.

The weakness was published 06/07/2012 (Website). The advisory is shared for download at This vulnerability is handled as CVE-2012-3291 since 06/07/2012. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 75056 (openSUSE Security Update : openconnect (openSUSE-SU-2013:1072-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (76199) and Tenable (75056). Similar entry is available at VDB-227096.





CPE 2.3info

CPE 2.2info


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

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
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Class: Memory corruption
CWE: CWE-119

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 75056
Nessus Name: openSUSE Security Update : openconnect (openSUSE-SU-2013:1072-1)
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OpenVAS ID: 71474
OpenVAS Name: Debian Security Advisory DSA 2495-1 (openconnect)
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Threat Intelligenceinfo

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Recommended: no mitigation known
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06/07/2012 🔍
06/07/2012 +0 days 🔍
06/07/2012 +0 days 🔍
06/07/2012 +0 days 🔍
06/15/2012 +8 days 🔍
06/26/2012 +11 days 🔍
06/13/2014 +717 days 🔍
03/23/2015 +283 days 🔍
12/03/2021 +2447 days 🔍


Advisory: dsa-2495
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-3291 (🔍)

X-Force: 76199
Vulnerability Center: 35423 - OpenConnect 3.18 Buffer Overflow Allows Remote DoS via a Crafted Greeting Banner, Medium
SecurityFocus: 54040 - OpenConnect CVE-2012-3291 Heap Based Buffer Overflow Vulnerability

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Created: 03/23/2015 04:50 PM
Updated: 12/03/2021 03:12 PM
Changes: 03/23/2015 04:50 PM (58), 04/14/2017 01:36 PM (10), 12/03/2021 03:04 PM (3), 12/03/2021 03:07 PM (1), 12/03/2021 03:12 PM (1)
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Cache ID: 3:0C3:40


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