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Fencer Intel
medium 6.5

CVE-2020-7045 json

In Wireshark 3.0.x before 3.0.8, the BT ATT dissector could crash.

published 6y ago modified 4mo ago also EUVD-2020-28179

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

In Wireshark 3.0.x before 3.0.8, the BT ATT dissector could crash. This was addressed in epan/dissectors/packet-btatt.c by validating opcodes.

Patch / fix

  • wireshark wireshark 3.0.8
  • wireshark Debian 14, Debian 13, Debian 12 3.2.0-1

debian advisories DEBIAN-CVE-2020-7045

  • wireshark Alpine 3.24, Alpine 3.23, Alpine 3.22 +12 more 3.0.8-r0

alpine advisories ALPINE-CVE-2020-7045

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

Is CVE-2020-7045 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-2020-7045 updated cvss 6.5

wireshark: invalid memory access in BT ATT dissector

  • Red Hat Enterprise Linux 5 wireshark Red Hat Enterprise Linux 6 wireshark, wireshark-gnome
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 wireshark, wireshark-cli
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 7 wireshark, wireshark-gnome
    not affected: vulnerable code not present

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

1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.wireshark.org https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16258 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 3.3 AV:A/AC:L/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.