Bug 1490543 (CVE-2017-12896) - CVE-2017-12896 tcpdump: Buffer over-read in print-isakmp.c:isakmp_rfc3948_print() in ISAKMP parser
Summary: CVE-2017-12896 tcpdump: Buffer over-read in print-isakmp.c:isakmp_rfc3948_pri...
Alias: CVE-2017-12896
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On:
Blocks: 1490633
TreeView+ depends on / blocked
Reported: 2017-09-11 21:47 UTC by Adam Mariš
Modified: 2021-02-17 01:34 UTC (History)
7 users (show)

Fixed In Version: tcpdump 4.9.2
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2017-09-13 03:42:49 UTC

Attachments (Terms of Use)

Description Adam Mariš 2017-09-11 21:47:57 UTC
Buffer over-read in print-isakmp.c:isakmp_rfc3948_print() in ISAKMP parser was found.

This vulnerability can be exploited in two ways. The first is to produce a .pcap file with crafted packet(s) for the protocol(s) concerned and make the target system try to decode the file using tcpdump. The second is to send specially crafted packet(s) to the network segment where the target system is running a tcpdump process that is decoding a live packet capture. In the latter case it depends on the specific network protocol if the crafted packet(s) may be sent from the local segment only or from a remote Internet host.

Comment 1 Adam Mariš 2017-09-11 21:48:02 UTC

Name: the Tcpdump project

Comment 3 Doran Moppert 2018-05-16 02:46:54 UTC
This issue was addressed in Red Hat Enterprise Linux 7 via RHEA-2018:0705, which rebased tcpdump to 4.9.2:


Note You need to log in before you can comment on or make changes to this bug.