Wireshark 1.4.5 bytes_repr_len pointer null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Wireshark 1.4.5. This impacts the function bytes_repr_len. The manipulation of the argument pointer results in null pointer dereference. This vulnerability is cataloged as CVE-2011-1956. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Wireshark 1.4.5 (Packet Analyzer Software). Affected is the function bytes_repr_len. The manipulation of the argument pointer with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

The bytes_repr_len function in Wireshark 1.4.5 uses an incorrect pointer argument, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via arbitrary TCP traffic.

The weakness was shared 06/06/2011 (Website). The advisory is available at wireshark.org. This vulnerability is traded as CVE-2011-1956. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 55411 (Wireshark 1.4.5 Denial of Service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows.

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 (67789), Exploit-DB (35873), Tenable (55411) and Vulnerability Center (SBV-31869†). The entries VDB-57597, VDB-57596 and VDB-57595 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55411
Nessus Name: Wireshark 1.4.5 Denial of Service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802877
OpenVAS Name: Wireshark bytes_repr_len Denial of Service Vulnerability (Mac OS X)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/09/2011 🔍
05/31/2011 +22 days 🔍
06/06/2011 +6 days 🔍
06/06/2011 +0 days 🔍
06/19/2011 +13 days 🔍
06/23/2011 +4 days 🔍
03/23/2015 +1369 days 🔍
04/16/2025 +3677 days 🔍

Sourcesinfo

Product: wireshark.org

Advisory: wireshark.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1956 (🔍)
GCVE (CVE): GCVE-0-2011-1956
GCVE (VulDB): GCVE-100-57594

OVAL: 🔍

X-Force: 67789
SecurityFocus: 48389
Secunia: 44449
Vulnerability Center: 31869 - Wireshark 1.4.5 Remote Denial of Service Vulnerability via Arbitrary TCP Traffic, Medium

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 04/16/2025 16:02
Changes: 03/23/2015 16:50 (58), 03/24/2017 10:08 (6), 11/08/2021 09:30 (5), 11/08/2021 09:33 (2), 04/16/2025 16:02 (25)
Complete: 🔍
Cache ID: 216:2DB:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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