CVE-2011-1956 EXPLOIT
4.3
MEDIUM · CVSS 2.0 · EPSS 5.9% (pctl 93)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 4.3 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| EPSS | 5.85% — more likely to be exploited than 93% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-06-06 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| wireshark | wireshark |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Wireshark 1.4.5 - 'bytes_repr_len()' Null Pointer Dereference Denial of Service | 2011-06-17 |
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
- 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
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