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CVE-2017-9345

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop...

7.5 HighFix available

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

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

3.02%Up 1.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

Record
CVE-2017-9345
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
7.8 HighAV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness
CWE-835
Updated
2026-11-02
CVE List No score

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

Record
CVE-2017-9345
Updated
2026-11-02
EUVDEUVD-2017-18280 No score

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

Record
EUVD-2017-18280
Updated
2026-11-03
GitHub AdvisoriesGHSA-p85x-87p9-8xpq 7.5

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop...

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

Record
GHSA-p85x-87p9-8xpq
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-835
Updated
2026-11-02
OSVALPINE-CVE-2017-9345 7.5

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

Record
ALPINE-CVE-2017-9345
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 7.5

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

Record
CVE-2017-9345
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 6 moreShow less
OSVDEBIAN-CVE-2017-9345 7.5

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

Record
DEBIAN-CVE-2017-9345
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2017-9345 7.5

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

Record
UBUNTU-CVE-2017-9345
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2017-0161 No score

Updated wireshark packages fix security vulnerabilities

The wireshark package has been updated to version 2.0.13, which fixes several security issues where a malformed packet trace could cause it to crash or go into an infinite loop, and fixes several other bugs as well. See the release notes for details.

Record
MGASA-2017-0161
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-2017:1663-1 No score

Security update for wireshark

The network debugging tool wireshark was updated to version 2.2.7 to fix the following issues:

  • CVE-2017-9352: Bazaar dissector infinite loop (wnpa-sec-2017-22) (bsc#1042304)
  • CVE-2017-9348: DOF dissector read overflow (wnpa-sec-2017-23) (bsc#1042303)
  • CVE-2017-9351: DHCP dissector read overflow (wnpa-sec-2017-24) (bsc#1042302)
  • CVE-2017-9346: SoulSeek dissector infinite loop (wnpa-sec-2017-25) (bsc#1042301)
  • CVE-2017-9345: DNS dissector infinite loop (wnpa-sec-2017-26) (bsc#1042300)
  • CVE-2017-9349: DICOM dissector infinite loop (wnpa-sec-2017-27) (bsc#1042305)
  • CVE-2017-9350: openSAFETY dissector memory exh.. (wnpa-sec-2017-28) (bsc#1042299)
  • CVE-2017-9344: BT L2CAP dissector divide by zero (wnpa-sec-2017-29) (bsc#1042298)
  • CVE-2017-9343: MSNIP dissector crash (wnpa-sec-2017-30) (bsc#1042309)
  • CVE-2017-9347: ROS dissector crash (wnpa-sec-2017-31) (bsc#1042308)
  • CVE-2017-9354: RGMP dissector crash (wnpa-sec-2017-32) (bsc#1042307)
  • CVE-2017-9353: wireshark: IPv6 dissector crash (wnpa-sec-2017-33) (bsc#1042306)
Record
SUSE-SU-2017:1663-1
Updated
2026-11-02
OSVSUSE-SU-2017:1664-1 No score

Security update for wireshark

The network analysis tool wireshark was updated to version 2.0.13 to fix the following issues:

  • CVE-2017-9352: Bazaar dissector infinite loop (wnpa-sec-2017-22) (bsc#1042304)
  • CVE-2017-9348: DOF dissector read overflow (wnpa-sec-2017-23) (bsc#1042303)
  • CVE-2017-9351: DHCP dissector read overflow (wnpa-sec-2017-24) (bsc#1042302)
  • CVE-2017-9346: SoulSeek dissector infinite loop (wnpa-sec-2017-25) (bsc#1042301)
  • CVE-2017-9345: DNS dissector infinite loop (wnpa-sec-2017-26) (bsc#1042300)
  • CVE-2017-9349: DICOM dissector infinite loop (wnpa-sec-2017-27) (bsc#1042305)
  • CVE-2017-9350: openSAFETY dissector memory exh.. (wnpa-sec-2017-28) (bsc#1042299)
  • CVE-2017-9344: BT L2CAP dissector divide by zero (wnpa-sec-2017-29) (bsc#1042298)
  • CVE-2017-9343: MSNIP dissector crash (wnpa-sec-2017-30) (bsc#1042309)
  • CVE-2017-9347: ROS dissector crash (wnpa-sec-2017-31) (bsc#1042308)
  • CVE-2017-9354: RGMP dissector crash (wnpa-sec-2017-32) (bsc#1042307)
  • CVE-2017-9353: wireshark: IPv6 dissector crash (wnpa-sec-2017-33) (bsc#1042306)
Record
SUSE-SU-2017:1664-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wireshark
Alpine:v3.5
 2.0.0 up to 2.2.7-r0
2.2.7-r0
wireshark
Debian:12
 before 2.2.7-1
2.2.7-1
wireshark
Debian:13
 before 2.2.7-1
2.2.7-1
wireshark
Debian:14
 before 2.2.7-1
2.2.7-1
wireshark
Mageia:5
 before 2.0.13-1.mga5
2.0.13-1.mga5
wireshark
SUSE:Linux Enterprise Desktop 12 SP2
 before 2.2.7-47.1
2.2.7-47.1
wireshark
SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2
 before 2.2.7-47.1
2.2.7-47.1
wireshark
SUSE:Linux Enterprise Software Development Kit 12 SP2
 before 2.2.7-47.1
2.2.7-47.1
wireshark
SUSE:Linux Enterprise Server 12 SP2
 before 2.2.7-47.1
2.2.7-47.1
wireshark
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
 before 2.2.7-47.1
2.2.7-47.1
Show 7 moreShow less
Affected packages
PackageAffectedFixed
wireshark
SUSE:Linux Enterprise Software Development Kit 11 SP4
 before 2.0.13-39.1
2.0.13-39.1
wireshark
SUSE:Linux Enterprise Server 11 SP4
 before 2.0.13-39.1
2.0.13-39.1
wireshark
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
 before 2.0.13-39.1
2.0.13-39.1
wireshark
Ubuntu:14.04:LTS
 before 2.6.3-1~ubuntu14.04.1, plus listed versions
1.10.2-11.10.3-11.10.5-1ubuntu11.10.5-21.10.6-11.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1
2.6.3-1~ubuntu14.04.1
wireshark
Ubuntu:16.04:LTS
 before 2.6.3-1~ubuntu16.04.1, 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
2.6.3-1~ubuntu16.04.1
wireshark
Ubuntu:18.04:LTS
 before 2.6.3-1~ubuntu18.04.1, plus listed versions
2.4.2-12.4.3-12.4.4-12.4.5-1
2.6.3-1~ubuntu18.04.1
wireshark
openSUSE:Tumbleweed
 before 3.4.8-1.2
3.4.8-1.2

History

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

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

In short

CVE-2017-9345 is a high vulnerability (CVSS 7.5) in Wireshark, published June 2, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.02%, the 87th percentile. Fixed in wireshark 2.2.7-r0.

References

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Left out here: 2 references. The JSON record has them.

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