Bug 1760518 (CVE-2018-16452) - CVE-2018-16452 tcpdump: Resource exhaustion in smb_fdata() funtion in smbutil.c
Summary: CVE-2018-16452 tcpdump: Resource exhaustion in smb_fdata() funtion in smbutil.c
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-16452
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 1791741 1791742
Blocks: 1760628
TreeView+ depends on / blocked
 
Reported: 2019-10-10 17:34 UTC by Pedro Sampaio
Modified: 2023-12-15 16:49 UTC (History)
6 users (show)

Fixed In Version: tcpdump 4.9.3
Clone Of:
Environment:
Last Closed: 2020-11-04 02:22:36 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 03:41:33 UTC

Description Pedro Sampaio 2019-10-10 17:34:25 UTC 
The SMB parser in tcpdump before 4.9.3 has stack exhaustion in smbutil.c:smb_fdata() via recursion.

Upstream patch:

https://github.com/the-tcpdump-group/tcpdump/commit/24182d959f661327525a20d9a94c98a8ec016778

References:

https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES
Comment 1 Pedro Sampaio 2019-10-11 00:04:52 UTC 
Created tcpdump tracking bugs for this issue:

Affects: fedora-all [bug 1760626]
Comment 3 Product Security DevOps Team 2020-11-04 02:22:36 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-2018-16452
Comment 4 errata-xmlrpc 2020-11-04 03:41:48 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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