CVE-2020-11102 QEMU: tulip: OOB access in tulip_copy_tx_buffers

                							

                <!--X-Body-Begin-->
<!--X-User-Header-->

oss-sec
mailing list archives
<!--X-User-Header-End-->
<!--X-TopPNI-->

By Date

By Thread

</form>

<!--X-TopPNI-End-->
<!--X-MsgBody-->
<!--X-Subject-Header-Begin-->
CVE-2020-11102 QEMU: tulip: OOB access in tulip_copy_tx_buffers

<!--X-Subject-Header-End-->
<!--X-Head-of-Message-->

From: P J P &lt;ppandit () redhat com&gt;

Date: Mon, 6 Apr 2020 15:50:51 +0530 (IST)

<!--X-Head-of-Message-End-->
<!--X-Head-Body-Sep-Begin-->

<!--X-Head-Body-Sep-End-->
<!--X-Body-of-Message-->
  Hello,

An out-of-bounds access issue was found in the Tulip NIC emulator built into 
QEMU. It could occur while copying network data to/from its tx/rx frame 
buffers, as it does not check frame size against the data length.

A remote user/process could use this flaw to crash the QEMU process resulting 
in Dos OR potentially execute arbitrary code with the privileges of the QEMU 
process on the host.

Upstream patch:
  -&gt; https://git.qemu.org/?p=qemu.git;a=commit;h=8ffb7265af64ec81748335ec8f20e7ab542c3850

This issue was reported by Ziming Zhang and Li Qiang (Ant Financial). 
CVE-2020-11102 requested via -&gt; https://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D

<!--X-Body-of-Message-End-->
<!--X-MsgBody-End-->
<!--X-Follow-Ups-->

<!--X-Follow-Ups-End-->
<!--X-References-->
<!--X-References-End-->
<!--X-BotPNI-->

By Date

By Thread

Current thread:

CVE-2020-11102 QEMU: tulip: OOB access in tulip_copy_tx_buffers P J P (Apr 06)

<!--X-BotPNI-End-->
<!--X-User-Footer-->
<!--X-User-Footer-End-->