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Bug 623016 (CVE-2017-10664) - <app-emulation/qemu-2.9.0-r56: qemu-nbd: server breaks with SIGPIPE upon client abort
Summary: <app-emulation/qemu-2.9.0-r56: qemu-nbd: server breaks with SIGPIPE upon clie...
Alias: CVE-2017-10664
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
Whiteboard: B3 [noglsa cve]
Depends on: CVE-2017-11434
  Show dependency tree
Reported: 2017-06-29 09:45 UTC by Kristian Fiskerstrand (RETIRED)
Modified: 2017-09-03 22:50 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Kristian Fiskerstrand (RETIRED) gentoo-dev 2017-06-29 09:45:46 UTC
From $URL:

Quick Emulator(Qemu) built with the Network Block Device(NBD) Server support is vulnerable to a crash via SIGPIPE signal. It could occur if a client aborts connection due to any failure during negotiation.

A remote user/process could use this flaw to crash the qemu-nbd server resulting in DoS.

Upstream patch:

Comment 1 Matthias Maier gentoo-dev 2017-07-26 18:58:39 UTC
commit 606c4d5b81243fb243bd38a21326e60c3318138c (HEAD -> master, origin/master, origin/HEAD)
Author: Matthias Maier <>
Date:   Wed Jul 26 13:53:25 2017 -0500

    app-emulation/qemu: security patches
     CVE-2017-7539,  bug #625850
     CVE-2017-10664, bug #623016
     CVE-2017-10806, bug #624088
    Package-Manager: Portage-2.3.6, Repoman-2.3.3