PT-2019-5672 · Tcpdump+7 · Tcpdump+7
Published
2019-09-30
·
Updated
2024-06-15
·
CVE-2018-16451
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 buffer over-reads in the SMB parser of tcpdump, specifically in the
print trans() function in print-smb.c, when handling MAILSLOTBROWSE and PIPELANMAN. This can potentially allow a remote attacker to cause a denial of service. Additionally, there are heap-based buffer over-reads related to aoe print in print-aoe.c and lookup emem 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 restricting the use of the SMB parser or disabling the
print trans() function until a patch is available. Restrict access to the affected modules, such as print-smb.c, print-aoe.c, and addrtoname.c, to minimize the risk of exploitation. Avoid using the aoe print and lookup emem functions in the affected API endpoints 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