CVE-2011-1956

Wireshark 1.4.5 - Denial of Service via NULL Pointer Dereference in bytes_repr_len

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2011-1956. PoCs published by rouli.

AI-analyzed exploit summary The provided text describes a remote denial-of-service vulnerability in Wireshark 1.4.5 due to a NULL-pointer-dereference error. The exploit is referenced via a PCAP file, but no actual exploit code is included in the text.

Description

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.

Exploits (1)

exploitdb WRITEUP VERIFIED
by rouli · textdoswindows
https://www.exploit-db.com/exploits/35873

The provided text describes a remote denial-of-service vulnerability in Wireshark 1.4.5 due to a NULL-pointer-dereference error. The exploit is referenced via a PCAP file, but no actual exploit code is included in the text.

Classification
Writeup 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Theoretical
Target: Wireshark 1.4.5
No auth needed
Prerequisites: Network access to send a malformed packet to the target
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (8)

Core 8
Core References
Exploit mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2011/05/31/19
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14943
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/67789
Exploit mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2011/06/01/9
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/44449

Scores

EPSS 0.0585
EPSS Percentile 92.3%

Details

Status published
Products (1)
wireshark/wireshark 1.4.5
Published Jun 06, 2011
Tracked Since Feb 18, 2026