PT-2017-16526 · Tcpdump+6 · Tcpdump+6
Published
2017-01-27
·
Updated
2024-06-15
·
CVE-2017-5485
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 4.9.0
Description
The issue is related to a buffer overflow in the ISO CLNS parser. This overflow is caused by improper bounds checking, allowing a remote attacker to send an overly long argument and potentially execute arbitrary code on the system or cause the application to crash. The buffer overflow is specifically located in the
lookup nsap() function in addrtoname.c and the clnp print() function in print-isoclns.c.Recommendations
For versions prior to 4.9.0, update to version 4.9.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the ISO CLNS parser to minimize the risk of exploitation. Avoid using the
clnp print() function in the print-isoclns.c file until the issue is resolved.Exploit
Fix
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Ibm Aix
Red Hat
Suse
Ubuntu
Tcpdump