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Fencer Intel
medium 5.9

CVE-2016-6509 json

epan/dissectors/packet-ldss.c in the LDSS dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 mishandles conversations, which…

published 2016-08-06 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7431

cvss
5.9
version 3.0, 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

epan/dissectors/packet-ldss.c in the LDSS dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 mishandles conversations, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Patch / fix

  • wireshark Debian 14, Debian 13, Debian 12 2.0.5+ga3be9c6-1

debian advisories DEBIAN-CVE-2016-6509

  • wireshark Ubuntu 14.04 LTS 1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1
  • wireshark Ubuntu 16.04 LTS 2.2.6+g32dac6a-2ubuntu0.16.04

ubuntu advisories UBUNTU-CVE-2016-6509

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wireshark SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 1.12.13-31.1
  • wireshark SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 1.12.13-0.23.1

suse advisories SUSE-SU-2016:2453-1SUSE-SU-2016:2212-1

  • wireshark openSUSE Tumbleweed 2.2.2-1.1

opensuse advisories openSUSE-SU-2024:10199-1

  • wireshark Alpine 3.24, Alpine 3.23, Alpine 3.22 +17 more 2.0.5-r0

alpine advisories ALPINE-CVE-2016-6509

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2016-6509 updated cvss 5.9

wireshark: LDSS dissector crash (wnpa-sec-2016-45)

  • Red Hat Enterprise Linux 5 wireshark Red Hat Enterprise Linux 6 wireshark, wireshark-gnome Red Hat Enterprise Linux 7 wireshark, wireshark-gnome
    affected: no fix planned “Will not fix”

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

2.09% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

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.