CVE-2023-6174
published 2023-11-16CVE-2023-6174: SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via packet injection or crafted capture file
PriorityP427medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.75%
50.7th percentile
SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via packet injection or crafted capture file
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | wireshark | < wireshark 4.0.11-1~deb12u1 (bookworm) | wireshark 4.0.11-1~deb12u1 (bookworm) |
| gitlab | wireshark | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| wireshark | wireshark | >= 0 < 4.0.11-1~deb12u1 | 4.0.11-1~deb12u1 |
| wireshark | wireshark | >= 0 < 4.0.11-1 | 4.0.11-1 |
| wireshark | wireshark | >= 0 < 4.0.11-1 | 4.0.11-1 |
| wireshark | wireshark | 4.0.0 – 4.0.10 | — |
| wireshark_foundation | wireshark | >= 4.0.0 < 4.0.11 | 4.0.11 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
osv6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_debian6.3MEDIUM
vendor_redhat6.3MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GitLab
Out-of-bounds Read in Wireshark
vendor_gitlab·2023-11-16·CVSS 6.5
CVE-2023-6174 [MEDIUM] CWE-125 Out-of-bounds Read in Wireshark
Out-of-bounds Read in Wireshark
SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via packet injection or crafted capture file
Affected products: Wireshark
Affected versions: >=4.0.0, <4.0.11 (affected)
Solution: Upgrade to version 4.0.11 or above.
Red Hat
wireshark: SSH dissector invalid read of memory blocks
vendor_redhat·2023-11-15·CVSS 6.3
CVE-2023-6174 [MEDIUM] CWE-125 wireshark: SSH dissector invalid read of memory blocks
wireshark: SSH dissector invalid read of memory blocks
SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via packet injection or crafted capture file
An invalid memory block read was found in Wireshark's SSH dissector. This issue may lead to an application crash and denial of service via packet injection or crafted capture file.
Statement: Default memory protections in Red Hat Enterprise Linux should prevent this issue from causing a higher impact than an application crash in the user context. Therefore, the severity of this flaw is low.
Package: wireshark (Red Hat Enterprise Linux 6) - Out of support scope
Package: wireshark (Red Hat Enterprise Linux 7) - Out of support scope
Package: wireshark (Red Hat Enterprise Linux 8) - Fix deferred
Package: wireshark (
Microsoft
Out-of-bounds Read in Wireshark
vendor_msrc·2023-11-14·CVSS 6.5
CVE-2023-6174 [MEDIUM] CWE-125 Out-of-bounds Read in Wireshark
Out-of-bounds Read in Wireshark
NIST NVD Details: https://nvd.nist.gov/vuln/detail/CVE-2023-6174
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitLab: GitLab
Customer Action Required: Yes
Remediation: wi
Debian
CVE-2023-6174: wireshark - SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via pa...
vendor_debian·2023·CVSS 6.3
CVE-2023-6174 [MEDIUM] CVE-2023-6174: wireshark - SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via pa...
SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via packet injection or crafted capture file
Scope: local
bookworm: resolved (fixed in 4.0.11-1~deb12u1)
bullseye: resolved
forky: resolved (fixed in 4.0.11-1)
sid: resolved (fixed in 4.0.11-1)
trixie: resolved (fixed in 4.0.11-1)
OSV
CVE-2023-6174: SSH dissector crash in Wireshark 4
osv·2023-11-16·CVSS 6.5
CVE-2023-6174 [MEDIUM] CVE-2023-6174: SSH dissector crash in Wireshark 4
SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via packet injection or crafted capture file
GHSA
GHSA-xx79-4755-jq22: SSH dissector crash in Wireshark 4
ghsa_unreviewed·2023-11-16
CVE-2023-6174 [MEDIUM] CWE-125 GHSA-xx79-4755-jq22: SSH dissector crash in Wireshark 4
SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via packet injection or crafted capture file
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://gitlab.com/wireshark/wireshark/-/issues/19369https://www.wireshark.org/security/wnpa-sec-2023-28.htmlhttps://gitlab.com/wireshark/wireshark/-/issues/19369https://lists.fedoraproject.org/archives/list/[email protected]/message/34DBP5P2RHQ7XUABPANYYMOGV5KS6VEP/https://lists.fedoraproject.org/archives/list/[email protected]/message/MADSCHKZSCKQ5NLIX3UMOIJD2JZ65L4V/https://security.gentoo.org/glsa/202402-09https://www.debian.org/security/2023/dsa-5559https://www.wireshark.org/security/wnpa-sec-2023-28.html
2023-11-16
Published