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CVE-2023-0668

Wireshark IEEE-C37.118 parsing buffer overflow

6.5 MediumFix available

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

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
None
Integrity
None
Availability
High

Exploit likelihood

2.26%Up 2.2 points since Jun 7, 2023
90%50%10%1%

What each source reports

NVD Score used 6.5

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

Record
CVE-2023-0668
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125, CWE-787
Updated
2026-11-02
CVE List 6.5

Wireshark IEEE-C37.118 parsing buffer overflow

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

Record
CVE-2023-0668
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
EUVDEUVD-2023-12700 6.5

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

Record
EUVD-2023-12700
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-4794-8fm9-wmp3 6.5

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet,...

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

Record
GHSA-4794-8fm9-wmp3
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125, CWE-787
Updated
2026-11-02
OSV 6.5

Wireshark IEEE-C37.118 parsing buffer overflow

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

Record
CVE-2023-0668
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSVDEBIAN-CVE-2023-0668 6.5

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

Record
DEBIAN-CVE-2023-0668
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 9 moreShow less
OSVOESA-2023-1321 7.8

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. It has many powerful features including a rich display filter language and the ability to reassemble multiple protocol packets in order to, for example, view a complete TCP stream, save the contents of a file which was transferred over HTTP or CIFS, or play back an RTP audio stream.

Security Fix(es):

BLF file parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file(CVE-2023-2857)

NetScaler file parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file(CVE-2023-2858)

Candump log parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file(CVE-2023-2855)

A flaw was found in the IEEE C37.118 Synchrophasor dissector of Wireshark. This issue occurs when decoding malformed packets from a pcap file or from the network, causing a buffer overflow, resulting in a denial of service.(CVE-2023-0668)

VMS TCPIPtrace file parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file(CVE-2023-2856)

GDSDB infinite loop in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via packet injection or crafted capture file(CVE-2023-2879)

Record
OESA-2023-1321
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2023-1322 7.8

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.It has many powerful features including a rich display filter language and the ability to reassemble multiple protocol packets in order to, for example, view a complete TCP stream, save the contents of a file which was transferred over HTTP or CIFS, or play back an RTP audio stream.

Security Fix(es):

BLF file parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file(CVE-2023-2857)

NetScaler file parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file(CVE-2023-2858)

Candump log parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file(CVE-2023-2855)

A flaw was found in the IEEE C37.118 Synchrophasor dissector of Wireshark. This issue occurs when decoding malformed packets from a pcap file or from the network, causing a buffer overflow, resulting in a denial of service.(CVE-2023-0668)

VMS TCPIPtrace file parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file(CVE-2023-2856)

GDSDB infinite loop in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via packet injection or crafted capture file(CVE-2023-2879)

Record
OESA-2023-1322
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2023:6469 6.5

Red Hat Security Advisory: wireshark security update

Record
RHSA-2023:6469
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2023-0668 6.5

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

Record
UBUNTU-CVE-2023-0668
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVALSA-2023:6469 No score

Moderate: wireshark security update

The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network.

Security Fix(es):

  • wireshark: RTPS dissector crash (CVE-2023-0666)
  • wireshark: IEEE C37.118 Synchrophasor dissector crash (CVE-2023-0668)
  • wireshark: Candump log file parser crash (CVE-2023-2855)
  • wireshark: VMS TCPIPtrace file parser crash (CVE-2023-2856)
  • wireshark: NetScaler file parser crash (CVE-2023-2858)
  • wireshark: XRA dissector infinite loop (CVE-2023-2952)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Record
ALSA-2023:6469
Updated
2026-11-02
OSVCLSA-2026-1778128255 No score

wireshark: Fix of 8 CVEs

  • CVE-2022-0585: fix large/infinite loops in multiple dissectors (AMP, ATN-ULCS, BP, GDSDB, P_MUL, WAP, ZigBee ZCL, OpenFlow v5/v6, IPDC, TDS, ASN.1 PER, FT_UINT_BYTES/STRING)
  • CVE-2022-4344: fix Kafka dissector memory exhaustion via decompression/loop bounds
  • CVE-2023-0666: fix RTPS dissector heap-based buffer overflow in g_strlcpy dest_size
  • CVE-2023-0668: fix synphasor dissector heap-based out-of-bounds read via val_to_str_const
  • CVE-2023-2855: fix candump file parser stack buffer overflow on too-long frame length
  • CVE-2023-2856: fix VMS TCPIPtrace file parser stack overflow in packet length search
  • CVE-2023-2858: fix NetScaler nstrace v10 file parser heap buffer overflow
  • CVE-2023-2952: fix XRA dissector infinite loop via integer overflow
Record
CLSA-2026-1778128255
Updated
2026-11-02
OSVopenSUSE-SU-2024:12958-1 No score

libwireshark16-4.0.6-1.1 on GA media

These are all security issues fixed in the libwireshark16-4.0.6-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12958-1
Updated
2026-11-02
OSVSUSE-SU-2023:2320-1 No score

Security update for wireshark

This update for wireshark fixes the following issues:

Updated to version 3.6.14:

  • CVE-2023-2855: Fixed a crash in the Candump log file parser (boo#1211703).
  • CVE-2023-2856: Fixed a crash in the VMS TCPIPtrace file parser (boo#1211707).
  • CVE-2023-2857: Fixed a crash in the BLF file parser (boo#1211705).
  • CVE-2023-2858: Fixed a crash in the NetScaler file parser (boo#1211706).
  • CVE-2023-0668: Fixed a crash in the IEEE C37.118 Synchrophasor dissector (boo#1211710).
  • CVE-2023-2879: GDSDB dissector infinite loop (boo#1211793).

Further features, bug fixes and updated protocol support as listed in: https://www.wireshark.org/docs/relnotes/wireshark-3.6.14.html

Record
SUSE-SU-2023:2320-1
Updated
2026-11-02
OSVSUSE-SU-2023:3252-1 No score

Security update for wireshark

This update for wireshark fixes the following issues:

Update to Wireshark 3.6.15:

Security fixes:

  • CVE-2023-0667: Fixed failure to validate MS-MMS packet length (bsc#1212084).
  • CVE-2023-0668: Fixed IEEE C37.118 Synchrophasor dissector crash (bsc#1211710).
  • CVE-2023-2855: Fixed Candump log file parser crash (bsc#1211703).
  • CVE-2023-2856: Fixed VMS TCPIPtrace file parser crash (bsc#1211707).
  • CVE-2023-2857: Fixed BLF file parser crash (bsc#1211705).
  • CVE-2023-2858: Fixed NetScaler file parser crash (bsc#1211706).
  • CVE-2023-2879: Fixed GDSDB dissector infinite loop (bsc#1211793).
  • CVE-2023-2952: Fixed XRA dissector infinite loop (bsc#1211844).
  • CVE-2023-3648: Fixed Kafka dissector crash (bsc#1213319).
Record
SUSE-SU-2023:3252-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wireshark
AlmaLinux:9
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-cli
AlmaLinux:9
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-devel
AlmaLinux:9
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark
TuxCare:AlmaLinux:9.2
before 1:3.4.10-4.el9.tuxcare.els8
1:3.4.10-4.el9.tuxcare.els8
wireshark-cli
TuxCare:AlmaLinux:9.2
before 1:3.4.10-4.el9.tuxcare.els8
1:3.4.10-4.el9.tuxcare.els8
wireshark-devel
TuxCare:AlmaLinux:9.2
before 1:3.4.10-4.el9.tuxcare.els8
1:3.4.10-4.el9.tuxcare.els8
wireshark
Debian:12
before 4.0.6-1~deb12u1, plus listed versions
4.0.3-14.0.5-1~exp1
4.0.6-1~deb12u1
wireshark
Debian:13
before 4.0.6-1
4.0.6-1
wireshark
Debian:14
before 4.0.6-1
4.0.6-1
wireshark
Debian:11
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
Show 30 moreShow less
Affected packages
PackageAffectedFixed
wireshark
openEuler:22.03-LTS
before 3.6.11-4.oe2203
3.6.11-4.oe2203
wireshark
openEuler:22.03-LTS-SP1
before 3.6.11-4.oe2203sp1
3.6.11-4.oe2203sp1
wireshark
Red Hat:enterprise_linux:9::appstream
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-cli
Red Hat:enterprise_linux:9::appstream
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-cli-debuginfo
Red Hat:enterprise_linux:9::appstream
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-debuginfo
Red Hat:enterprise_linux:9::appstream
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-debugsource
Red Hat:enterprise_linux:9::appstream
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-cli-debuginfo
Red Hat:enterprise_linux:9::crb
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-debuginfo
Red Hat:enterprise_linux:9::crb
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-debugsource
Red Hat:enterprise_linux:9::crb
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark-devel
Red Hat:enterprise_linux:9::crb
before 1:3.4.10-6.el9
1:3.4.10-6.el9
wireshark
SUSE:Linux Enterprise Module for Basesystem 15 SP4
before 3.6.14-150000.3.92.1
3.6.14-150000.3.92.1
wireshark
SUSE:Linux Enterprise Module for Basesystem 15 SP5
before 3.6.14-150000.3.92.1
3.6.14-150000.3.92.1
wireshark
SUSE:Linux Enterprise Module for Desktop Applications 15 SP4
before 3.6.14-150000.3.92.1
3.6.14-150000.3.92.1
wireshark
SUSE:Linux Enterprise Module for Desktop Applications 15 SP5
before 3.6.14-150000.3.92.1
3.6.14-150000.3.92.1
wireshark
SUSE:Linux Enterprise Real Time 15 SP3
before 3.6.14-150000.3.92.1
3.6.14-150000.3.92.1
wireshark
openSUSE:Leap 15.4
before 3.6.14-150000.3.92.1
3.6.14-150000.3.92.1
wireshark
openSUSE:Leap 15.5
before 3.6.14-150000.3.92.1
3.6.14-150000.3.92.1
wireshark
SUSE:Linux Enterprise Module for Basesystem 15 SP4
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
SUSE:Linux Enterprise Module for Basesystem 15 SP5
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
SUSE:Linux Enterprise Module for Desktop Applications 15 SP4
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
SUSE:Linux Enterprise Module for Desktop Applications 15 SP5
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
SUSE:Linux Enterprise Real Time 15 SP3
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
SUSE:Manager Proxy 4.2
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
SUSE:Manager Server 4.2
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
openSUSE:Leap 15.4
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
openSUSE:Leap 15.5
before 3.6.15-150000.3.97.1
3.6.15-150000.3.97.1
wireshark
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
3.0.5-13.0.7-13.2.1-13.2.2-13.2.3-13.2.3-1ubuntu0.1~esm13.2.3-1ubuntu0.1~esm2
None known
wireshark
Ubuntu:Pro:22.04:LTS
All versions, plus listed versions
3.4.7-1~exp13.4.9-13.6.2-1ubuntu13.6.2-23.6.2-2ubuntu0.1~esm1
None known
wireshark
openSUSE:Tumbleweed
before 4.0.6-1.1
4.0.6-1.1

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2023-0668 is a medium vulnerability (CVSS 6.5) in Wireshark, published May 30, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.26%, the 83rd percentile. Fixed in wireshark 1:3.4.10-6.el9.

References

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