Date: Tue, 18 Dec 2018 11:44:32 +0200 From: saar amar <saaramar5@...il.com> To: P J P <ppandit@...hat.com> Cc: oss security list <oss-security@...ts.openwall.com> Subject: Re: CVE-2018-20124 QEMU: rdma: OOB access when building scatter-gather array Thanks all :) I'm happy it fixed, thanks for the response guys! I'm wondering why it says "DOS" and not "execute arbitrary code on the host, in the context of the QEMU process"? I have stack overflow, it pretty clear I could gain more than simple DOS:) What do your day? On Tue, 18 Dec 2018, 10:53 P J P <ppandit@...hat.com wrote: > Hello, > > An out-of-bound stack buffer r/w access issue was found in QEMU's generic > RDMA > back-end implementation. It could occur when a driver tries to build > scatter/gather element's array in build_host_sge_array() routine. > > A guest user/process could use this flaw to crash the QEMU process > resulting > in DoS. > > Upstream patch: > --------------- > -> https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02822.html > > This issue was reported by Saar Amar. > > Thank you. > -- > Prasad J Pandit / Red Hat Product Security Team > 47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F >
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