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Issue 734016 link

Starred by 2 users

Issue metadata

Status: Archived
Owner:
Closed: Jun 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 2
Type: Bug-Security



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CrOS: Vulnerability reported in net-fs/samba

Project Member Reported by vomit.go...@appspot.gserviceaccount.com, Jun 16 2017

Issue description

Automated analysis has detected that the following third party packages have had vulnerabilities publicly reported. 

NOTE: There may be several bugs listed below - in almost all cases, all bugs can be quickly addressed by upgrading to the latest version of the package.

Package Name: net-fs/samba
Package Version: [cpe:/a:samba:samba:4.5.3]

Advisory: CVE-2017-9461
  Details: https://vomit.googleplex.com/advisory?id=CVE/CVE-2017-9461
  CVSS severity score: 7.8/10.0
  Confidence: high
  Description:

smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability (fd_open_atomic infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks.


 

Comment 1 by est...@chromium.org, Jun 16 2017

Owner: jorgelo@chromium.org
Status: Assigned (was: Untriaged)
jorgelo, can you take a look please?
Cc: jorgelo@chromium.org
Owner: ljusten@chromium.org
Passing this to the folks who own Samba. Lutz, can you route appropriately?
Status: Started (was: Assigned)
I've uploaded CL:540739.
Components: Enterprise

Comment 5 by mmoroz@chromium.org, Jun 20 2017

Labels: Security_Impact-Stable Security_Severity-Low
AFAIK, we don't consider DoS as security bugs, but I'm not sure about ChromeOS + this is a publicly known CVE. I speculatively assigning Low severity here, but please feel free to re-adjust or remove security flags if it is not needed.
Project Member

Comment 6 by sheriffbot@chromium.org, Jun 21 2017

Labels: -Pri-1 Pri-2
Project Member

Comment 7 by bugdroid1@chromium.org, Jun 22 2017

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/chromiumos-overlay/+/26794d56055e3e182375724f331f34c043cd83db

commit 26794d56055e3e182375724f331f34c043cd83db
Author: Lutz Justen <ljusten@chromium.org>
Date: Thu Jun 22 01:48:10 2017

Samba: Apply patch for CVE-2017-9461

See https://bugzilla.samba.org/show_bug.cgi?id=12572 and
https://git.samba.org/?p=samba.git;a=commit;h=10c3e3923022485c720f322ca4f0aca5d7501310
for details. The issue probably does not cause any harm to Chrome OS
yet since it is a Samba server bug and authpolicy, being the only
Samba user so far, only acts as a client.

BUG= chromium:734016 
TEST=emerge-amd64-generic samba

Change-Id: I27d61c78666208abca710f4ee41f711a61051607
Reviewed-on: https://chromium-review.googlesource.com/540739
Commit-Ready: Lutz Justen <ljusten@chromium.org>
Tested-by: Lutz Justen <ljusten@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>

[rename] https://crrev.com/26794d56055e3e182375724f331f34c043cd83db/net-fs/samba/samba-4.5.3-r9.ebuild
[modify] https://crrev.com/26794d56055e3e182375724f331f34c043cd83db/net-fs/samba/samba-4.5.3.ebuild
[add] https://crrev.com/26794d56055e3e182375724f331f34c043cd83db/net-fs/samba/files/samba-4.5.3-fix_cve_2017_9461.patch

Status: Fixed (was: Started)
Project Member

Comment 9 by sheriffbot@chromium.org, Jun 23 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Project Member

Comment 10 by sheriffbot@chromium.org, Sep 29 2017

Labels: -Restrict-View-SecurityNotify allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 11 by dchan@chromium.org, Jan 22 2018

Status: Archived (was: Fixed)

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