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Bug 717770 (CVE-2020-1711) - <app-emulation/qemu-4.2.0-r5: Out of bounds buffer read in iSCSI (CVE-2020-1711)
Summary: <app-emulation/qemu-4.2.0-r5: Out of bounds buffer read in iSCSI (CVE-2020-1711)
Alias: CVE-2020-1711
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
Whiteboard: B2 [glsa+ cve]
Depends on:
Reported: 2020-04-16 23:44 UTC by GLSAMaker/CVETool Bot
Modified: 2020-05-12 23:33 UTC (History)
2 users (show)

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


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Description GLSAMaker/CVETool Bot gentoo-dev 2020-04-16 23:44:39 UTC
CVE-2020-1711 (
  An out-of-bounds heap buffer access flaw was found in the way the iSCSI
  Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming
  from an iSCSI server while checking the status of a Logical Address Block
  (LBA) in an iscsi_co_block_status() routine. A remote user could use this
  flaw to crash the QEMU process, resulting in a denial of service or
  potential execution of arbitrary code with privileges of the QEMU process on
  the host.
Comment 1 Larry the Git Cow gentoo-dev 2020-04-18 22:06:44 UTC
The bug has been referenced in the following commit(s):

commit 3d64329bfa3c175fc678d0dba06d2618cdb2ee89
Author:     Matthias Maier <>
AuthorDate: 2020-04-18 21:49:15 +0000
Commit:     Matthias Maier <>
CommitDate: 2020-04-18 22:05:37 +0000

    app-emulation/qemu: add security patch
    Package-Manager: Portage-2.3.99, Repoman-2.3.22
    Signed-off-by: Matthias Maier <>

 app-emulation/qemu/Manifest             |   1 +
 app-emulation/qemu/qemu-4.2.0-r5.ebuild | 833 ++++++++++++++++++++++++++++++++
 2 files changed, 834 insertions(+)
Comment 2 GLSAMaker/CVETool Bot gentoo-dev 2020-05-12 23:33:55 UTC
This issue was resolved and addressed in
 GLSA 202005-02 at
by GLSA coordinator Thomas Deutschmann (whissi).