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Related Vulnerabilities: CVE-2020-1711 CVE-2020-7039

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code. (CVE-2020-7039) 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. (CVE-2020-1711)

Source

ALAS2-2020-1407

Amazon Linux 2 Security Advisory: ALAS-2020-1407
Advisory Release Date: 2020-03-23 16:27 Pacific
Advisory Updated Date: 2020-03-25 21:48 Pacific

Severity: Important

References: CVE-2020-1711 CVE-2020-7039

Issue Overview:

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code. (CVE-2020-7039)

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. (CVE-2020-1711)

Affected Packages:

qemu

Issue Correction:
Run yum update qemu to update your system.

New Packages:

aarch64:
    qemu-3.1.0-8.amzn2.0.2.aarch64
    qemu-common-3.1.0-8.amzn2.0.2.aarch64
    qemu-guest-agent-3.1.0-8.amzn2.0.2.aarch64
    qemu-img-3.1.0-8.amzn2.0.2.aarch64
    ivshmem-tools-3.1.0-8.amzn2.0.2.aarch64
    qemu-block-curl-3.1.0-8.amzn2.0.2.aarch64
    qemu-block-dmg-3.1.0-8.amzn2.0.2.aarch64
    qemu-block-iscsi-3.1.0-8.amzn2.0.2.aarch64
    qemu-block-nfs-3.1.0-8.amzn2.0.2.aarch64
    qemu-block-rbd-3.1.0-8.amzn2.0.2.aarch64
    qemu-block-ssh-3.1.0-8.amzn2.0.2.aarch64
    qemu-audio-alsa-3.1.0-8.amzn2.0.2.aarch64
    qemu-audio-oss-3.1.0-8.amzn2.0.2.aarch64
    qemu-audio-pa-3.1.0-8.amzn2.0.2.aarch64
    qemu-audio-sdl-3.1.0-8.amzn2.0.2.aarch64
    qemu-ui-curses-3.1.0-8.amzn2.0.2.aarch64
    qemu-ui-gtk-3.1.0-8.amzn2.0.2.aarch64
    qemu-ui-sdl-3.1.0-8.amzn2.0.2.aarch64
    qemu-kvm-3.1.0-8.amzn2.0.2.aarch64
    qemu-kvm-core-3.1.0-8.amzn2.0.2.aarch64
    qemu-user-3.1.0-8.amzn2.0.2.aarch64
    qemu-user-binfmt-3.1.0-8.amzn2.0.2.aarch64
    qemu-user-static-3.1.0-8.amzn2.0.2.aarch64
    qemu-system-aarch64-3.1.0-8.amzn2.0.2.aarch64
    qemu-system-aarch64-core-3.1.0-8.amzn2.0.2.aarch64
    qemu-system-x86-3.1.0-8.amzn2.0.2.aarch64
    qemu-system-x86-core-3.1.0-8.amzn2.0.2.aarch64
    qemu-debuginfo-3.1.0-8.amzn2.0.2.aarch64

i686:
    qemu-3.1.0-8.amzn2.0.2.i686
    qemu-common-3.1.0-8.amzn2.0.2.i686
    qemu-guest-agent-3.1.0-8.amzn2.0.2.i686
    qemu-img-3.1.0-8.amzn2.0.2.i686
    ivshmem-tools-3.1.0-8.amzn2.0.2.i686
    qemu-block-curl-3.1.0-8.amzn2.0.2.i686
    qemu-block-dmg-3.1.0-8.amzn2.0.2.i686
    qemu-block-iscsi-3.1.0-8.amzn2.0.2.i686
    qemu-block-nfs-3.1.0-8.amzn2.0.2.i686
    qemu-block-ssh-3.1.0-8.amzn2.0.2.i686
    qemu-audio-alsa-3.1.0-8.amzn2.0.2.i686
    qemu-audio-oss-3.1.0-8.amzn2.0.2.i686
    qemu-audio-pa-3.1.0-8.amzn2.0.2.i686
    qemu-audio-sdl-3.1.0-8.amzn2.0.2.i686
    qemu-ui-curses-3.1.0-8.amzn2.0.2.i686
    qemu-ui-gtk-3.1.0-8.amzn2.0.2.i686
    qemu-ui-sdl-3.1.0-8.amzn2.0.2.i686
    qemu-kvm-3.1.0-8.amzn2.0.2.i686
    qemu-kvm-core-3.1.0-8.amzn2.0.2.i686
    qemu-user-3.1.0-8.amzn2.0.2.i686
    qemu-user-binfmt-3.1.0-8.amzn2.0.2.i686
    qemu-user-static-3.1.0-8.amzn2.0.2.i686
    qemu-system-aarch64-3.1.0-8.amzn2.0.2.i686
    qemu-system-aarch64-core-3.1.0-8.amzn2.0.2.i686
    qemu-system-x86-3.1.0-8.amzn2.0.2.i686
    qemu-system-x86-core-3.1.0-8.amzn2.0.2.i686
    qemu-debuginfo-3.1.0-8.amzn2.0.2.i686

src:
    qemu-3.1.0-8.amzn2.0.2.src

x86_64:
    qemu-3.1.0-8.amzn2.0.2.x86_64
    qemu-common-3.1.0-8.amzn2.0.2.x86_64
    qemu-guest-agent-3.1.0-8.amzn2.0.2.x86_64
    qemu-img-3.1.0-8.amzn2.0.2.x86_64
    ivshmem-tools-3.1.0-8.amzn2.0.2.x86_64
    qemu-block-curl-3.1.0-8.amzn2.0.2.x86_64
    qemu-block-dmg-3.1.0-8.amzn2.0.2.x86_64
    qemu-block-iscsi-3.1.0-8.amzn2.0.2.x86_64
    qemu-block-nfs-3.1.0-8.amzn2.0.2.x86_64
    qemu-block-rbd-3.1.0-8.amzn2.0.2.x86_64
    qemu-block-ssh-3.1.0-8.amzn2.0.2.x86_64
    qemu-audio-alsa-3.1.0-8.amzn2.0.2.x86_64
    qemu-audio-oss-3.1.0-8.amzn2.0.2.x86_64
    qemu-audio-pa-3.1.0-8.amzn2.0.2.x86_64
    qemu-audio-sdl-3.1.0-8.amzn2.0.2.x86_64
    qemu-ui-curses-3.1.0-8.amzn2.0.2.x86_64
    qemu-ui-gtk-3.1.0-8.amzn2.0.2.x86_64
    qemu-ui-sdl-3.1.0-8.amzn2.0.2.x86_64
    qemu-kvm-3.1.0-8.amzn2.0.2.x86_64
    qemu-kvm-core-3.1.0-8.amzn2.0.2.x86_64
    qemu-user-3.1.0-8.amzn2.0.2.x86_64
    qemu-user-binfmt-3.1.0-8.amzn2.0.2.x86_64
    qemu-user-static-3.1.0-8.amzn2.0.2.x86_64
    qemu-system-aarch64-3.1.0-8.amzn2.0.2.x86_64
    qemu-system-aarch64-core-3.1.0-8.amzn2.0.2.x86_64
    qemu-system-x86-3.1.0-8.amzn2.0.2.x86_64
    qemu-system-x86-core-3.1.0-8.amzn2.0.2.x86_64
    qemu-debuginfo-3.1.0-8.amzn2.0.2.x86_64

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