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Fencer Intel
medium 4.3

CVE-2011-2175 json

Integer underflow in the visual_read function in wiretap/visual.c in Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 allows remote att…

published 2011-06-06 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2167

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

Integer underflow in the visual_read function in wiretap/visual.c in Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 allows remote attackers to cause a denial of service (application crash) via a malformed Visual Networks file that triggers a heap-based buffer over-read.

Patch / fix

  • wireshark Debian 14, Debian 13, Debian 12 1.6.0-1

debian advisories DEBIAN-CVE-2011-2175

  • wireshark RHEL 5 1.0.15-5.el5
  • wireshark-gnome RHEL 5 1.0.15-5.el5
  • wireshark RHEL 6 1.2.15-2.el6_2.1
  • wireshark-gnome RHEL 6 1.2.15-2.el6_2.1

red hat advisories RHSA-2013:0125RHSA-2012:0509

  • wireshark openSUSE Tumbleweed 2.2.2-1.1

opensuse advisories openSUSE-SU-2024:10199-1

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-2011-2175 updated cvss 4.3

wireshark: Heap-based buffer over-read in Visual Networks dissector

  • Red Hat Enterprise Linux 4 wireshark
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) wireshark 1.0.15-5.el5, wireshark-gnome 1.0.15-5.el5 Red Hat Enterprise Linux Desktop (v. 5 client) wireshark 1.0.15-5.el5
    fixed: vendor fix RHSA-2013:0125
  • Red Hat Enterprise Linux Desktop (v. 6) wireshark 1.2.15-2.el6_2.1 Red Hat Enterprise Linux Desktop Optional (v. 6) wireshark 1.2.15-2.el6_2.1, wireshark-gnome 1.2.15-2.el6_2.1
    fixed: vendor fix RHSA-2012:0509
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) wireshark 1.0.15-5.el5, wireshark-gnome 1.0.15-5.el5
    fixed: vendor fix RHSA-2013:0125
  • Red Hat Enterprise Linux Server (v. 6) wireshark 1.2.15-2.el6_2.1 Red Hat Enterprise Linux Server Optional (v. 6) wireshark 1.2.15-2.el6_2.1, wireshark-gnome 1.2.15-2.el6_2.1 Red Hat Enterprise Linux Workstation (v. 6) wireshark 1.2.15-2.el6_2.1 Red Hat Enterprise Linux Workstation Optional (v. 6) wireshark 1.2.15-2.el6_2.1, wireshark-gnome 1.2.15-2.el6_2.1
    fixed: vendor fix RHSA-2012:0509

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

2.10% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=710109 referenced PoC, tagged "exploit" by a source, unverified
  • bugs.wireshark.org https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5934 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

Classification

Weakness

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.