Description
The BGP parser in tcpdump before 4.9.3 allows stack consumption in print-bgp.c:bgp_attr_print() because of unlimited recursion.
References (16)
Core 16
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES
Patch, Third Party Advisory x_refsource_confirm
https://github.com/the-tcpdump-group/tcpdump/commit/af2cf04a9394c1a56227c2289ae8da262828294a
Mailing List mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/10/msg00015.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00050.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00053.html
Mailing List mailing-list
x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Oct/28
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2019/dsa-4547
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT210788
Mailing List mailing-list
x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Dec/23
Mailing List mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2019/Dec/26
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200120-0001/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4252-2/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4252-1/
Scores
CVSS v3
7.5
EPSS
0.0028
EPSS Percentile
51.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-674
Status
published
Products (1)
tcpdump/tcpdump
< 4.9.3
Published
Oct 03, 2019
Tracked Since
Feb 18, 2026