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Fencer Intel
medium 4.3

CVE-2009-4377 json

The (1) SMB and (2) SMB2 dissectors in Wireshark 0.9.0 through 1.2.4 allow remote attackers to cause a denial of service (crash) via a craf…

published 16y ago modified 4mo ago also EUVD-2009-4345

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

The (1) SMB and (2) SMB2 dissectors in Wireshark 0.9.0 through 1.2.4 allow remote attackers to cause a denial of service (crash) via a crafted packet that triggers a NULL pointer dereference, as demonstrated by fuzz-2009-12-07-11141.pcap.

Patch / fix

  • wireshark Debian 14, Debian 13, Debian 12 1.2.5-1

debian advisories DEBIAN-CVE-2009-4377

  • wireshark RHEL 3 1.0.11-EL3.6
  • wireshark RHEL 4 1.0.11-1.el4_8.5
  • wireshark RHEL 5 1.0.11-1.el5_5.5
  • wireshark-gnome RHEL 3 1.0.11-EL3.6
  • wireshark-gnome RHEL 4 1.0.11-1.el4_8.5
  • wireshark-gnome RHEL 5 1.0.11-1.el5_5.5

red hat advisories RHSA-2010:0360

Is CVE-2009-4377 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-4377 updated cvss 5.4

wireshark: invalid pointer dereference in SMB/SMB2 dissectors

  • Red Hat Desktop version 3 wireshark 1.0.11-EL3.6, wireshark-gnome 1.0.11-EL3.6 Red Hat Enterprise Linux (v. 5 server) wireshark 1.0.11-1.el5_5.5, wireshark-gnome 1.0.11-1.el5_5.5 Red Hat Enterprise Linux AS version 3 wireshark 1.0.11-EL3.6, wireshark-gnome 1.0.11-EL3.6 Red Hat Enterprise Linux AS version 4 wireshark 1.0.11-1.el4_8.5, wireshark-gnome 1.0.11-1.el4_8.5 Red Hat Enterprise Linux Desktop (v. 5 client) wireshark 1.0.11-1.el5_5.5, wireshark-gnome 1.0.11-1.el5_5.5 Red Hat Enterprise Linux Desktop version 4 wireshark 1.0.11-1.el4_8.5, wireshark-gnome 1.0.11-1.el4_8.5
    +5 more products
    Red Hat Enterprise Linux Desktop Workstation (v. 5 client) wireshark 1.0.11-1.el5_5.5, wireshark-gnome 1.0.11-1.el5_5.5 Red Hat Enterprise Linux ES version 3 wireshark 1.0.11-EL3.6, wireshark-gnome 1.0.11-EL3.6 Red Hat Enterprise Linux ES version 4 wireshark 1.0.11-1.el4_8.5, wireshark-gnome 1.0.11-1.el4_8.5 Red Hat Enterprise Linux WS version 3 wireshark 1.0.11-EL3.6, wireshark-gnome 1.0.11-EL3.6 Red Hat Enterprise Linux WS version 4 wireshark 1.0.11-1.el4_8.5, wireshark-gnome 1.0.11-1.el4_8.5
    fixed: vendor fix RHSA-2010:0360

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.66% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • securityfocus.com http://www.securityfocus.com/bid/37407 referenced PoC, tagged "exploit" by a source, unverified
  • bugs.wireshark.org https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4301 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.