CVE-2016-2538: Integer Overflow
First published: Fri Jan 29 2016(Updated: )
Multiple integer overflows in the USB Net device emulator (hw/usb/dev-network.c) in QEMU before 2.5.1 allow local guest OS administrators to cause a denial of service (QEMU process crash) or obtain sensitive host memory information via a remote NDIS control message packet that is mishandled in the (1) rndis_query_response, (2) rndis_set_response, or (3) usb_net_handle_dataout function.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU KVM | <=2.5.0 |
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Reference Links
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fe3c546c5ff2a6210f9a4d8561cc64051ca8603e
- http://lists.nongnu.org/archive/html/qemu-stable/2016-03/msg00064.html
- http://www.openwall.com/lists/oss-security/2016/02/22/3
- http://www.securityfocus.com/bid/83336
- http://www.ubuntu.com/usn/USN-2974-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1303120
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-02/msg03658.html
- https://security.gentoo.org/glsa/201604-01
- https://access.redhat.com/support/policy/updates/errata/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1305816
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1305815
Frequently Asked Questions
What is the severity of CVE-2016-2538?
CVE-2016-2538 is classified as a medium severity vulnerability.
How do I fix CVE-2016-2538?
To fix CVE-2016-2538, upgrade QEMU to version 2.5.1 or later.
What types of attacks are possible due to CVE-2016-2538?
CVE-2016-2538 allows attackers to cause a denial of service by crashing the QEMU process or potentially access sensitive host memory.
Who is affected by CVE-2016-2538?
Local guest OS administrators using vulnerable versions of QEMU are affected by CVE-2016-2538.
What is the affected software for CVE-2016-2538?
CVE-2016-2538 affects QEMU versions up to and including 2.5.0.
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