Bug 1563994 (CVE-2017-0861) - CVE-2017-0861 kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation
Summary: CVE-2017-0861 kernel: Use-after-free in snd_pcm_info function in ALSA subsyst...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-0861
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1563995 1563996 1565188 1565189 1565190 1565191 1565192 1740211 1740213 1740214 1740215
Blocks: 1563998
TreeView+ depends on / blocked
 
Reported: 2018-04-05 06:51 UTC by Adam Mariš
Modified: 2021-12-10 15:54 UTC (History)
43 users (show)

Fixed In Version: kernel 4.15
Doc Type: If docs needed, set a value
Doc Text:
Use-after-free vulnerability in the snd_pcm_info() function in the ALSA subsystem in the Linux kernel allows attackers to induce a kernel memory corruption and possibly crash or lock up a system. Due to the nature of the flaw, a privilege escalation cannot be fully ruled out, although we believe it is unlikely.
Clone Of:
Environment:
Last Closed: 2019-06-10 10:19:40 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2390 0 None None None 2018-08-14 18:26:14 UTC
Red Hat Product Errata RHSA-2018:3083 0 None None None 2018-10-30 07:32:51 UTC
Red Hat Product Errata RHSA-2018:3096 0 None None None 2018-10-30 07:39:03 UTC
Red Hat Product Errata RHSA-2020:0036 0 None None None 2020-01-07 12:26:13 UTC

Description Adam Mariš 2018-04-05 06:51:32 UTC 
Use-after-free vulnerability in the snd_pcm_info() function in the ALSA subsystem in the Linux kernel allows attackers to induce a kernel memory corruption and possibly crash or lock up a system. Due to the nature of the flaw, a privilege escalation cannot be fully ruled out, although we believe it is unlikely.

References:

http://lists.alioth.debian.org/pipermail/secure-testing-commits/2017-December/059967.html

https://source.android.com/security/bulletin/pixel/2017-11-01#kernel-components

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=362bca57f5d78220f8b5907b875961af9436e229
Comment 1 Adam Mariš 2018-04-05 06:52:21 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1563995]
Comment 3 Justin M. Forbes 2018-04-05 14:29:14 UTC 
This was fixed for Fedora with the 4.14.6 stable updates.
Comment 7 errata-xmlrpc 2018-08-14 18:25:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:2390 https://access.redhat.com/errata/RHSA-2018:2390
Comment 8 errata-xmlrpc 2018-10-30 07:32:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3083
Comment 9 errata-xmlrpc 2018-10-30 07:38:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3096 https://access.redhat.com/errata/RHSA-2018:3096
Comment 12 errata-xmlrpc 2020-01-07 12:26:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.5 Extended Update Support

Via RHSA-2020:0036 https://access.redhat.com/errata/RHSA-2020:0036
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