What’s Vulnerable › Vulnerabilities

CVE-2011-1956

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-06-06 · updated 2026-06-16

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.

Affected products

• Wireshark Foundation Wireshark: 1.4.5

References

• http://openwall.com/lists/oss-security/2011/05/31/19
• http://openwall.com/lists/oss-security/2011/06/01/9
• http://secunia.com/advisories/44449
• http://www.wireshark.org/docs/relnotes/wireshark-1.4.6.html
• http://www.wireshark.org/news/20110418.html
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5837
• https://exchange.xforce.ibmcloud.com/vulnerabilities/67789
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14943
• http://openwall.com/lists/oss-security/2011/05/31/19
• http://openwall.com/lists/oss-security/2011/06/01/9
• http://secunia.com/advisories/44449
• http://www.wireshark.org/docs/relnotes/wireshark-1.4.6.html

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