wireshark: Excessive CPU usage in NFS dissector
Published Jul 24, 2012
2.9
LOWCVSS 2.0
EPSS 1.65%
Description
epan/dissectors/packet-nfs.c in the NFS dissector in Wireshark 1.4.x before 1.4.14, 1.6.x before 1.6.9, and 1.8.x before 1.8.1 allows remote attackers to cause a denial of service (loop and CPU consumption) via a crafted packet.
Affected products
No data.
Configuration 1
- 1.4.0
- 1.4.0
- 1.4.0
- 1.4.1
- 1.4.1
- 1.4.1
- 1.4.2
- 1.4.2
- 1.4.2
- 1.4.3
- 1.4.3
- 1.4.3
- 1.4.4
- 1.4.4
- 1.4.4
- 1.4.5
- 1.4.5
- 1.4.5
- 1.4.6
- 1.4.6
- 1.4.6
- 1.4.7
- 1.4.7
- 1.4.7
- 1.4.8
- 1.4.8
- 1.4.8
- 1.4.9
- 1.4.9
- 1.4.9
- 1.4.10
- 1.4.10
- 1.4.10
- 1.4.11
- 1.4.11
- 1.4.11
- 1.4.12
- 1.4.12
- 1.4.12
- 1.4.13
- 1.4.13
- 1.4.13
Configuration 2
Configuration 3
- 1.6.0
- 1.6.0
- 1.6.0
- 1.6.1
- 1.6.1
- 1.6.1
- 1.6.2
- 1.6.2
- 1.6.2
- 1.6.3
- 1.6.3
- 1.6.3
- 1.6.4
- 1.6.4
- 1.6.4
- 1.6.5
- 1.6.5
- 1.6.5
- 1.6.6
- 1.6.6
- 1.6.6
- 1.6.7
- 1.6.7
- 1.6.7
- 1.6.8
- 1.6.8
- 1.6.8
No data.
Red Hat Enterprise Linux 5
wireshark
Under investigation
Red Hat Enterprise Linux 6
wireshark
Under investigation
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wireshark | Under investigation | n/a |
| Red Hat Enterprise Linux 6 | wireshark | Under investigation | 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:M/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.65% (0.01647) | 75.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.65% (0.01647) | 73.33th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.57% (0.00575) | 66.85th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.71% (0.00711) | 81.13th | v3 (v2023.03.01) |
| Feb 22, 2024 | 0.71% (0.00711) | 79.90th | v3 (v2023.03.01) |
| Apr 11, 2023 | 0.93% (0.00930) | 80.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.78% (0.00785) | 78.70th | 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-nfs.c?r1=43576&r2=43575&pathrev=43576 x_refsource_CONFIRMExploitPatch
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=43576 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00000.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/49971 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/54425 third-party-advisoryx_refsource_SECUNIA
- http://www.gentoo.org/security/en/glsa/glsa-201308-05.xml vendor-advisoryx_refsource_GENTOO
- http://www.wireshark.org/security/wnpa-sec-2012-12.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2012-4049 Vendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7436 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=842518 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-4049
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15707 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2012-4049
Change history (0)
No recorded changes yet.