wireshark: Infinite loop in the HSRP dissector
Published Oct 4, 2012
3.3
LOWCVSS 2.0
EPSS 0.89%
Description
The dissect_hsrp function in epan/dissectors/packet-hsrp.c in the HSRP dissector in Wireshark 1.8.x before 1.8.3 allows remote attackers to cause a denial of service (infinite loop) via a malformed packet.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
wireshark
Not affected
Red Hat Enterprise Linux 6
wireshark
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wireshark | Not affected | n/a |
| Red Hat Enterprise Linux 6 | wireshark | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not Vulnerable. This issue does not affect the version of wireshark as shipped with Red Hat Enterprise Linux 5 and 6.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:A/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.89% (0.00886) | 57.79th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.89% (0.00886) | 54.38th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.96% (0.00963) | 74.97th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.17% (0.00168) | 55.11th | v3 (v2023.03.01) |
| May 4, 2024 | 0.17% (0.00168) | 53.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00199) | 56.01th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
References (13)
- http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-hsrp.c?r1=44454&r2=44453&pathrev=44454 x_refsource_CONFIRM
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=44454 x_refsource_CONFIRMPatch
- http://osvdb.org/85884 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/55754 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1027604 vdb-entryx_refsource_SECTRACK
- http://www.wireshark.org/security/wnpa-sec-2012-26.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2012-5237 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7581 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=862504 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79009 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2012-5237
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14992 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2012-5237
Change history (0)
No recorded changes yet.