// For flags

CVE-2018-16300

tcpdump: Resource exhaustion in bgp_attr_print() function in print-bgp.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 BGP parser in tcpdump before 4.9.3 allows stack consumption in print-bgp.c:bgp_attr_print() because of unlimited recursion.

El analizador BGP en tcpdump versiones anteriores a 4.9.3, permite el consumo de pila en print-bgp.c:bgp_attr_print() debido a una recursividad ilimitada.

An uncontrolled resource consumption flaw was discovered in the way tcpdump prints BGP packets. The BGP protocol allows ATTR_SET to be nested as many times as the message can accommodate, however when a specially crafted packet is crafted and parsed by tcpdump, this may lead to stack exhaustion due to uncontrolled recursion. 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
  • 2018-08-31 CVE Reserved
  • 2019-10-01 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-11-07 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-674: Uncontrolled Recursion
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 X_refsource_confirm
URL Date SRC
URL Date SRC
https://github.com/the-tcpdump-group/tcpdump/commit/af2cf04a9394c1a56227c2289ae8da262828294a 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-2018-16300 2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1760445 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