PT-2019-5679 · Tcpdump+7 · Tcpdump+7
Bhargava Shastry
·
Published
2019-09-30
·
Updated
2025-12-03
·
CVE-2018-14881
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
tcpdump versions prior to 4.9.3
Description
The issue is related to a buffer over-read in the
bgp capabilities print() function in print-bgp.c, which can cause a denial of service. This can be exploited by a remote attacker. The bgp capabilities print() function is used for printing BGP capabilities. The vulnerability is also related to the BGP CAPCODE RESTART code. Additionally, there is a heap-based buffer over-read related to the aoe print function in print-aoe.c and the lookup emem function in addrtoname.c.Recommendations
For versions prior to 4.9.3, update to version 4.9.3 or later to resolve the issue.
As a temporary workaround, consider disabling the
bgp capabilities print() function until a patch is available.
Restrict access to the print-bgp.c and print-aoe.c modules to minimize the risk of exploitation.
Avoid using the BGP CAPCODE RESTART code in the affected API endpoint until the issue is resolved.Fix
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Ibm Aix
Red Hat
Rocky Linux
Suse
Ubuntu
Tcpdump