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CVE-2020-9429

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan...

7.5 HighFix available

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan/dissectors/packet-wireguard.c by handling the situation where a certain data structure intentionally has a NULL value.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.54%Up 0.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan/dissectors/packet-wireguard.c by handling the situation where a certain data structure intentionally has a NULL value.

Record
CVE-2020-9429
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-476
Updated
2026-11-02
CVE List No score

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan/dissectors/packet-wireguard.c by handling the situation where a certain data structure intentionally has a NULL value.

Record
CVE-2020-9429
Updated
2026-11-02
EUVDEUVD-2020-30249 No score

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan/dissectors/packet-wireguard.c by handling the situation where a certain data structure intentionally has a NULL value.

Record
EUVD-2020-30249
Updated
2026-11-03
GitHub AdvisoriesGHSA-hm4c-x6v5-6m98 No score

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan...

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan/dissectors/packet-wireguard.c by handling the situation where a certain data structure intentionally has a NULL value.

Record
GHSA-hm4c-x6v5-6m98
Weakness
CWE-476
Updated
2026-11-02
OSV 7.5

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan/dissectors/packet-wireguard.c by handling the situation where a certain data structure intentionally has a NULL value.

Record
CVE-2020-9429
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2020-9429 7.5

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan/dissectors/packet-wireguard.c by handling the situation where a certain data structure intentionally has a NULL value.

Record
DEBIAN-CVE-2020-9429
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2020:0362-1 No score

Security update for wireshark

This update for wireshark and libmaxminddb fixes the following issues:

Update wireshark to new major version 3.2.2 and introduce libmaxminddb for GeoIP support (bsc#1156288).

New features include:

  • Added support for 111 new protocols, including WireGuard, LoRaWAN, TPM 2.0, 802.11ax and QUIC
  • Improved support for existing protocols, like HTTP/2
  • Improved analytics and usability functionalities

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2020:0362-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11513-1 No score

libwireshark14-3.4.8-1.2 on GA media

These are all security issues fixed in the libwireshark14-3.4.8-1.2 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11513-1
Updated
2026-11-02
OSVSUSE-SU-2020:0693-1 No score

Security update for wireshark

This update for wireshark and libmaxminddb fixes the following issues:

Update wireshark to new major version 3.2.2 and introduce libmaxminddb for GeoIP support (bsc#1156288).

New features include:

  • Added support for 111 new protocols, including WireGuard, LoRaWAN, TPM 2.0, 802.11ax and QUIC
  • Improved support for existing protocols, like HTTP/2
  • Improved analytics and usability functionalities
Record
SUSE-SU-2020:0693-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wireshark
Debian:12
 before 3.2.2-1
3.2.2-1
wireshark
Debian:13
 before 3.2.2-1
3.2.2-1
wireshark
Debian:14
 before 3.2.2-1
3.2.2-1
libmaxminddb
SUSE:Linux Enterprise Module for Basesystem 15 SP1
From an advisory covering 59 CVEs
 before 1.4.2-1.3.1
1.4.2-1.3.1
spandsp
SUSE:Linux Enterprise Module for Basesystem 15 SP1
From an advisory covering 59 CVEs
 before 0.0.6-3.2.1
0.0.6-3.2.1
wireshark
SUSE:Linux Enterprise Module for Basesystem 15 SP1
From an advisory covering 59 CVEs
 before 3.2.2-3.35.2
3.2.2-3.35.2
spandsp
SUSE:Linux Enterprise Module for Desktop Applications 15 SP1
From an advisory covering 59 CVEs
 before 0.0.6-3.2.1
0.0.6-3.2.1
wireshark
SUSE:Linux Enterprise Module for Desktop Applications 15 SP1
From an advisory covering 59 CVEs
 before 3.2.2-3.35.2
3.2.2-3.35.2
libmaxminddb
SUSE:Linux Enterprise High Performance Computing 15-ESPOS
From an advisory covering 59 CVEs
 before 1.4.2-1.3.1
1.4.2-1.3.1
spandsp
SUSE:Linux Enterprise High Performance Computing 15-ESPOS
From an advisory covering 59 CVEs
 before 0.0.6-3.2.1
0.0.6-3.2.1
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Affected packages
PackageAffectedFixed
wireshark
SUSE:Linux Enterprise High Performance Computing 15-ESPOS
From an advisory covering 59 CVEs
 before 3.2.2-3.35.2
3.2.2-3.35.2
libmaxminddb
SUSE:Linux Enterprise High Performance Computing 15-LTSS
From an advisory covering 59 CVEs
 before 1.4.2-1.3.1
1.4.2-1.3.1
spandsp
SUSE:Linux Enterprise High Performance Computing 15-LTSS
From an advisory covering 59 CVEs
 before 0.0.6-3.2.1
0.0.6-3.2.1
wireshark
SUSE:Linux Enterprise High Performance Computing 15-LTSS
From an advisory covering 59 CVEs
 before 3.2.2-3.35.2
3.2.2-3.35.2
libmaxminddb
SUSE:Linux Enterprise Server 15-LTSS
From an advisory covering 59 CVEs
 before 1.4.2-1.3.1
1.4.2-1.3.1
spandsp
SUSE:Linux Enterprise Server 15-LTSS
From an advisory covering 59 CVEs
 before 0.0.6-3.2.1
0.0.6-3.2.1
wireshark
SUSE:Linux Enterprise Server 15-LTSS
From an advisory covering 59 CVEs
 before 3.2.2-3.35.2
3.2.2-3.35.2
libmaxminddb
SUSE:Linux Enterprise Server for SAP Applications 15
From an advisory covering 59 CVEs
 before 1.4.2-1.3.1
1.4.2-1.3.1
spandsp
SUSE:Linux Enterprise Server for SAP Applications 15
From an advisory covering 59 CVEs
 before 0.0.6-3.2.1
0.0.6-3.2.1
wireshark
SUSE:Linux Enterprise Server for SAP Applications 15
From an advisory covering 59 CVEs
 before 3.2.2-3.35.2
3.2.2-3.35.2
libmaxminddb
openSUSE:Leap 15.1
From an advisory covering 59 CVEs
 before 1.4.2-lp151.3.3.1
1.4.2-lp151.3.3.1
spandsp
openSUSE:Leap 15.1
From an advisory covering 59 CVEs
 before 0.0.6-lp151.3.3.1
0.0.6-lp151.3.3.1
wireshark
openSUSE:Leap 15.1
From an advisory covering 59 CVEs
 before 3.2.2-lp151.2.9.1
3.2.2-lp151.2.9.1
wireshark
openSUSE:Tumbleweed
From an advisory covering 163 CVEs
 before 3.4.8-1.2
3.4.8-1.2

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-9429 is a high vulnerability (CVSS 7.5) in Wireshark, published February 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.54%, the 75th percentile. Fixed in wireshark 3.2.2-1.

References

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Left out here: 10 references. The JSON record has them.

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