PT-2019-4781 · Tcpdump+7 · Tcpdump+7
Wang Junjie
·
Published
2019-09-30
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Updated
2025-12-03
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CVE-2018-14882
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 ICMPv6 parser of the tcpdump utility, which can lead to a denial of service. This can be exploited by a remote attacker. The buffer over-read is located in print-icmp6.c. Additionally, there is a heap-based buffer over-read 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 access to the ICMPv6 parser and the affected functions
aoe print and lookup emem until a patch is available.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