// For flags

CVE-2018-16228

tcpdump: Access to uninitialized buffer in print_prefix() function in print-hncp.c

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The HNCP parser in tcpdump before 4.9.3 has a buffer over-read in print-hncp.c:print_prefix().

El analizador HNCP en tcpdump versiones anteriores a 4.9.3, presenta una lectura excesiva del búfer en print-hncp.c:print_prefix().

A flaw was found in tcpdump where an uninitialized buffer is accessed in tcpdump while printing HNCP packets captured in a pcap file or coming from the network. A remote attacker may abuse this flaw by sending specially crafted packets that, when printed, would trigger the flaw and crash the application. System availability is the highest threat from this vulnerability.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-08-30 CVE Reserved
  • 2019-10-01 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-09-26 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
  • CWE-665: Improper Initialization
CAPEC
References (18)
URL Tag Source
http://seclists.org/fulldisclosure/2019/Dec/26 Mailing List
https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES Release Notes
https://lists.debian.org/debian-lts-announce/2019/10/msg00015.html Mailing List
https://seclists.org/bugtraq/2019/Dec/23 Mailing List
https://seclists.org/bugtraq/2019/Oct/28 Mailing List
https://security.netapp.com/advisory/ntap-20200120-0001 X_refsource_confirm
https://support.apple.com/kb/HT210788 Third Party Advisory
URL Date SRC
URL Date SRC
https://github.com/the-tcpdump-group/tcpdump/commit/83a412a5275cac973c5841eca3511c766bed778d 2023-11-07
URL Date SRC
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00050.html 2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00053.html 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU 2023-11-07
https://usn.ubuntu.com/4252-1 2023-11-07
https://usn.ubuntu.com/4252-2 2023-11-07
https://www.debian.org/security/2019/dsa-4547 2023-11-07
https://access.redhat.com/security/cve/CVE-2018-16228 2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1760514 2020-11-04
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tcpdump
Search vendor "Tcpdump"
 Tcpdump
Search vendor "Tcpdump" for product "Tcpdump"
 < 4.9.3
Search vendor "Tcpdump" for product "Tcpdump" and version " < 4.9.3"
-
Affected
Apple
Search vendor "Apple"
 Mac Os X
Search vendor "Apple" for product "Mac Os X"
 < 10.15.2
Search vendor "Apple" for product "Mac Os X" and version " < 10.15.2"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 29
Search vendor "Fedoraproject" for product "Fedora" and version "29"
-
Affected
Fedoraproject
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 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 30
Search vendor "Fedoraproject" for product "Fedora" and version "30"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 31
Search vendor "Fedoraproject" for product "Fedora" and version "31"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.0
Search vendor "Opensuse" for product "Leap" and version "15.0"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
Affected
Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
 7.0
Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"
-
Affected
Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
 8.0
Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"
-
Affected