Bug 1760514 (CVE-2018-16228) - CVE-2018-16228 tcpdump: Access to uninitialized buffer in print_prefix() function in print-hncp.c
Summary: CVE-2018-16228 tcpdump: Access to uninitialized buffer in print_prefix() func...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-16228
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1760626 1791733
Blocks: 1760628
TreeView+ depends on / blocked
 
Reported: 2019-10-10 17:29 UTC by Pedro Sampaio
Modified: 2021-02-16 21:17 UTC (History)
6 users (show)

Fixed In Version: tcpdump 4.9.3
Clone Of:
Environment:
Last Closed: 2020-11-04 02:22:29 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4760 0 None None None 2020-11-04 03:41:21 UTC

Description Pedro Sampaio 2019-10-10 17:29:47 UTC 
The HNCP parser in tcpdump before 4.9.3 has a buffer over-read in print-hncp.c:print_prefix().

Upstream patch:

https://github.com/the-tcpdump-group/tcpdump/commit/83a412a5275cac973c5841eca3511c766bed778d

References:

https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES
Comment 1 Pedro Sampaio 2019-10-11 00:04:28 UTC 
Created tcpdump tracking bugs for this issue:

Affects: fedora-all [bug 1760626]
Comment 5 Eric Christensen 2020-01-20 13:14:53 UTC 
Statement:

This issue does not affect the versions of tcpdump as shipped with Red Hat Enterprise Linux 7 as they already include the patch.
Comment 6 Product Security DevOps Team 2020-11-04 02:22:29 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-16228
Comment 7 errata-xmlrpc 2020-11-04 03:41:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4760 https://access.redhat.com/errata/RHSA-2020:4760
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