oss-security - CVE-2019-9824 QEMU: Slirp: information leakage in tcp_emu() due to uninitialized stack variables

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [day] [month] [year] [list]

Date: Mon, 18 Mar 2019 12:44:20 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: William Bowling <will@...wling.info>
Subject: CVE-2019-9824 QEMU: Slirp: information leakage in tcp_emu() due to
 uninitialized stack variables

     Hello,

An information leakage issue was found in the SLiRP networking implementation 
of the QEMU emulator. It occurs in tcp_emu() routine while emulating 
Identification protocol, when crafted messages are sent to make it return 
uninitialized variables.

A user/process could use this flaw to read uninitialised stack memory contents 
from the QEMU process resulting in information leakage.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2019-03/msg01871.html

This issue was reported by William Bowling. CVE requested via https://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.