Bug 1902231 (CVE-2020-29129, CVE-2020-29130) - CVE-2020-29129 CVE-2020-29130 QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets
Summary: CVE-2020-29129 CVE-2020-29130 QEMU: slirp: out-of-bounds access while process...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-29129, CVE-2020-29130
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: 1902232 1902234 1902235 1902236 1902237 1902238 1902239
Blocks: 1887769
TreeView+ depends on / blocked
 
Reported: 2020-11-27 12:55 UTC by Prasad Pandit
Modified: 2021-05-18 14:51 UTC (History)
28 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds access issue was found in the SLiRP user networking implementation of QEMU. It could occur while processing ARP/NCSI packets, if the packet length was shorter than required to accommodate respective protocol headers and payload. A privileged guest user may use this flaw to potentially leak host information bytes.
Clone Of:
Environment:
Last Closed: 2021-05-18 14:36:59 UTC
Embargoed:

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Description Prasad Pandit 2020-11-27 12:55:10 UTC 
An out-of-bounds access issue was found in the SLiRP user networking implementation of QEMU. It could occur while processing ARP/NCSI packets, if the packet length was shorter than required to accommodate respective protocol headers and payload. A privileged guest user may use this flaw to potentially leak host information bytes.

Upstream patch:
---------------
  -> https://lists.freedesktop.org/archives/slirp/2020-November/000115.html
Comment 1 Prasad Pandit 2020-11-27 12:55:18 UTC 
Acknowledgments:

Name: Qiuhao Li
Comment 2 Prasad Pandit 2020-11-27 12:55:46 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1902232]
Comment 4 Prasad Pandit 2020-11-27 13:23:37 UTC 
External References:

https://www.openwall.com/lists/oss-security/2020/11/27/1
Comment 7 Product Security DevOps Team 2021-05-18 14:36:59 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-2020-29129
https://access.redhat.com/security/cve/cve-2020-29130
Comment 8 errata-xmlrpc 2021-05-18 14:51:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:1762 https://access.redhat.com/errata/RHSA-2021:1762
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