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CVE-2022-0582

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11...

6.3 MediumFix available

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

1.99%Up 1.1 points since Feb 15, 2022
90%50%10%1%

What each source reports

CVE List Score used 6.3

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
CVE-2022-0582
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
EUVDEUVD-2022-15692 6.3

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
EUVD-2022-15692
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-f9cx-48m4-2xp7 9.8

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11...

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
GHSA-f9cx-48m4-2xp7
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-74, CWE-476
Updated
2026-11-02
NVD 6.3

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
CVE-2022-0582
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-476
Updated
2026-11-02
OSVALPINE-CVE-2022-0582 9.8

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
ALPINE-CVE-2022-0582
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSVAZL-8589 9.8

CVE-2022-0582 affecting package wireshark for versions less than 3.4.14-1

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
AZL-8589
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 8 moreShow less
OSV 6.3

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
CVE-2022-0582
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVDEBIAN-CVE-2022-0582 9.8

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
DEBIAN-CVE-2022-0582
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSVOESA-2022-2078 9.8

wireshark security update

Wireshark allows you to examine protocol data stored in files or as it is captured from wired or wireless (WiFi or Bluetooth) networks, USB devices, and many other sources. It supports dozens of protocol capture file formats and understands more than a thousand protocols.

Security Fix(es):

Crash in the PVFS protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file(CVE-2022-0583)

Large loops in multiple protocol dissectors in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allow denial of service via packet injection or crafted capture file(CVE-2022-0585)

Crash in the CMS protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file(CVE-2022-0581)

Infinite loop in RTMPT protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file(CVE-2022-0586)

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file(CVE-2022-0582)

Crash in the OPUS protocol dissector in Wireshark 3.6.0 to 3.6.8 allows denial of service via packet injection or crafted capture file(CVE-2022-3725)

Record
OESA-2022-2078
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2022-0582 6.3

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Record
UBUNTU-CVE-2022-0582
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2022:0722-1 No score

Security update for wireshark

This update for wireshark fixes the following issues:

Update to Wireshark 3.6.2:

  • CVE-2022-0586: RTMPT dissector infinite loop (bsc#1195866)
  • CVE-2022-0585: Large loops in multiple dissectors (bsc#1195867)
  • CVE-2022-0583: PVFS dissector crash (bsc#1195868)
  • CVE-2022-0582: CSN.1 dissector crash (bsc#1195869)
  • CVE-2022-0581: CMS dissector crash (bsc#1195870)
Record
openSUSE-SU-2022:0722-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11858-1 No score

libwireshark15-3.6.2-2.1 on GA media

These are all security issues fixed in the libwireshark15-3.6.2-2.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11858-1
Updated
2026-11-02
OSVSUSE-SU-2022:0722-1 No score

Security update for wireshark

This update for wireshark fixes the following issues:

Update to Wireshark 3.6.2:

  • CVE-2022-0586: RTMPT dissector infinite loop (bsc#1195866)
  • CVE-2022-0585: Large loops in multiple dissectors (bsc#1195867)
  • CVE-2022-0583: PVFS dissector crash (bsc#1195868)
  • CVE-2022-0582: CSN.1 dissector crash (bsc#1195869)
  • CVE-2022-0581: CMS dissector crash (bsc#1195870)
Record
SUSE-SU-2022:0722-1
Updated
2026-11-02
OSVUSN-7552-1 No score

wireshark vulnerabilities

It was discovered that Wireshark did not correctly handle recursion. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-39929)

Roman Donchenko discovered that Wireshark did not correctly handle parsing certain files. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-4182)

It was discovered that Wireshark did not correctly handle parsing certain files. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-4185, CVE-2022-0581)

It was discovered that Wireshark did not correctly handle parsing certain files. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-4186)

Sharon Brizinov discovered that Wireshark did not correctly handle parsing certain files. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2022-0582, CVE-2022-0583, CVE-2022-0586)

Sharon Brizinov discovered that Wireshark did not correctly handle parsing certain files. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2022-0585)

Jason Cohen discovered that Wireshark did not correctly handle parsing certain files. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-3190)

Record
USN-7552-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wireshark
Alpine:v3.15
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.16
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.17
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.18
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.19
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.20
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.21
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.22
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.23
3.4.0 up to 3.4.13-r0
3.4.13-r0
wireshark
Alpine:v3.24
3.4.0 up to 3.4.13-r0
3.4.13-r0
Show 40 moreShow less
Affected packages
PackageAffectedFixed
wireshark
Azure Linux:2
before 3.4.14-1
3.4.14-1
wireshark
Debian:12
before 3.6.2-1
3.6.2-1
wireshark
Debian:13
before 3.6.2-1
3.6.2-1
wireshark
Debian:14
before 3.6.2-1
3.6.2-1
wireshark
Debian:9
From an advisory covering 9 CVEs
before 2.6.20-0+deb9u3, plus listed versions
2.2.6+g32dac6a-22.2.6+g32dac6a-2+deb9u12.2.6+g32dac6a-2+deb9u22.2.6+g32dac6a-2+deb9u32.2.7-1
Show 26 moreShow less
2.4.0-12.4.1-12.4.2-12.4.3-12.4.4-12.4.5-12.4.6-12.6.1-12.6.10-12.6.2-12.6.2-22.6.20-0+deb9u12.6.20-0+deb9u22.6.3-12.6.3-1~deb9u12.6.4-12.6.4-22.6.5-12.6.5-1~deb9u12.6.6-12.6.7-12.6.7-1~deb9u12.6.8-12.6.8-1.12.6.8-1.1~deb9u12.6.9-1
2.6.20-0+deb9u3
wireshark
Debian:11
From an advisory covering 47 CVEs
before 3.4.16-0+deb11u1, plus listed versions
3.4.10-0+deb11u13.4.4-13.4.6-1~exp13.4.7-13.4.7-1~exp13.4.8-13.4.9-1
3.4.16-0+deb11u1
wireshark
openEuler:22.03-LTS
From an advisory covering 6 CVEs
before 3.6.2-3.oe2203
3.6.2-3.oe2203
wireshark
SUSE:Linux Enterprise Module for Basesystem 15 SP3
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Module for Desktop Applications 15 SP3
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise High Performance Computing 15-ESPOS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise High Performance Computing 15-LTSS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Real Time 15 SP2
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Server 15-LTSS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Server 15 SP1-BCL
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Server 15 SP1-LTSS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Server 15 SP2-BCL
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Server 15 SP2-LTSS
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Server for SAP Applications 15
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Server for SAP Applications 15 SP1
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Linux Enterprise Server for SAP Applications 15 SP2
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Manager Proxy 4.1
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Manager Retail Branch Server 4.1
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Manager Server 4.1
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Enterprise Storage 6
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
SUSE:Enterprise Storage 7
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
Ubuntu:Pro:14.04:LTS
before 2.6.10-1~ubuntu14.04.0~esm3, plus listed versions
1.10.2-11.10.3-11.10.5-1ubuntu11.10.5-21.10.6-1
Show 8 moreShow less
1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.12.6.3-1~ubuntu14.04.12.6.4-2~ubuntu14.04.12.6.5-1~ubuntu14.04.12.6.6-1~ubuntu14.04.02.6.8-1~ubuntu14.04.0~esm12.6.10-1~ubuntu14.04.0~esm12.6.10-1~ubuntu14.04.0~esm2
2.6.10-1~ubuntu14.04.0~esm3
wireshark
Ubuntu:Pro:16.04:LTS
before 2.6.10-1~ubuntu16.04.0+esm2, plus listed versions
1.12.7+g7fc8978-11.12.8+g5b6e543-22.0.1+g59ea380-3build12.0.2+ga16e22e-12.2.6+g32dac6a-2ubuntu0.16.04
Show 7 moreShow less
2.6.3-1~ubuntu16.04.12.6.4-2~ubuntu16.04.02.6.5-1~ubuntu16.04.02.6.6-1~ubuntu16.04.02.6.8-1~ubuntu16.04.02.6.10-1~ubuntu16.04.02.6.10-1~ubuntu16.04.0+esm1
2.6.10-1~ubuntu16.04.0+esm2
wireshark
Ubuntu:Pro:18.04:LTS
before 2.6.10-1~ubuntu18.04.0+esm2, plus listed versions
2.4.2-12.4.3-12.4.4-12.4.5-12.6.3-1~ubuntu18.04.1
Show 6 moreShow less
2.6.4-2~ubuntu18.04.02.6.5-1~ubuntu18.04.02.6.6-1~ubuntu18.04.02.6.8-1~ubuntu18.04.02.6.10-1~ubuntu18.04.02.6.10-1~ubuntu18.04.0+esm1
2.6.10-1~ubuntu18.04.0+esm2
wireshark
Ubuntu:Pro:20.04:LTS
before 3.2.3-1ubuntu0.1~esm2, plus listed versions
3.0.5-13.0.7-13.2.1-13.2.2-13.2.3-13.2.3-1ubuntu0.1~esm1
3.2.3-1ubuntu0.1~esm2
wireshark
Ubuntu:Pro:14.04:LTS
From an advisory covering 10 CVEs
before 2.6.10-1~ubuntu14.04.0~esm3, plus listed versions
1.10.2-11.10.3-11.10.5-1ubuntu11.10.5-21.10.6-1
Show 8 moreShow less
1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.12.6.3-1~ubuntu14.04.12.6.4-2~ubuntu14.04.12.6.5-1~ubuntu14.04.12.6.6-1~ubuntu14.04.02.6.8-1~ubuntu14.04.0~esm12.6.10-1~ubuntu14.04.0~esm12.6.10-1~ubuntu14.04.0~esm2
2.6.10-1~ubuntu14.04.0~esm3
wireshark
Ubuntu:Pro:16.04:LTS
From an advisory covering 10 CVEs
before 2.6.10-1~ubuntu16.04.0+esm2, plus listed versions
1.12.7+g7fc8978-11.12.8+g5b6e543-22.0.1+g59ea380-3build12.0.2+ga16e22e-12.2.6+g32dac6a-2ubuntu0.16.04
Show 7 moreShow less
2.6.3-1~ubuntu16.04.12.6.4-2~ubuntu16.04.02.6.5-1~ubuntu16.04.02.6.6-1~ubuntu16.04.02.6.8-1~ubuntu16.04.02.6.10-1~ubuntu16.04.02.6.10-1~ubuntu16.04.0+esm1
2.6.10-1~ubuntu16.04.0+esm2
wireshark
Ubuntu:Pro:18.04:LTS
From an advisory covering 10 CVEs
before 2.6.10-1~ubuntu18.04.0+esm2, plus listed versions
2.4.2-12.4.3-12.4.4-12.4.5-12.6.3-1~ubuntu18.04.1
Show 6 moreShow less
2.6.4-2~ubuntu18.04.02.6.5-1~ubuntu18.04.02.6.6-1~ubuntu18.04.02.6.8-1~ubuntu18.04.02.6.10-1~ubuntu18.04.02.6.10-1~ubuntu18.04.0+esm1
2.6.10-1~ubuntu18.04.0+esm2
wireshark
Ubuntu:Pro:20.04:LTS
From an advisory covering 10 CVEs
before 3.2.3-1ubuntu0.1~esm2, plus listed versions
3.0.5-13.0.7-13.2.1-13.2.2-13.2.3-13.2.3-1ubuntu0.1~esm1
3.2.3-1ubuntu0.1~esm2
wireshark
Ubuntu:Pro:22.04:LTS
From an advisory covering 10 CVEs
before 3.6.2-2ubuntu0.1~esm1, plus listed versions
3.4.7-1~exp13.4.9-13.6.2-1ubuntu13.6.2-2
3.6.2-2ubuntu0.1~esm1
wireshark
openSUSE:Leap 15.3
From an advisory covering 5 CVEs
before 3.6.2-3.71.1
3.6.2-3.71.1
wireshark
openSUSE:Tumbleweed
From an advisory covering 5 CVEs
before 3.6.2-2.1
3.6.2-2.1

History

History
RecordedChangedSources
affected, factsOSV
affected, aliases, referencesOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2022-0582 is a medium vulnerability (CVSS 6.3) in Wireshark, published February 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.99%, the 80th percentile. Fixed in wireshark 3.4.13-r0.

References

Show 39 moreShow less
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