Out-of-bounds Write Affecting qemu package, versions <1:4.1-2


0.0
medium

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.36% (72nd percentile)
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NVD
5.6 medium
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SUSE
7 high
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Red Hat
5.6 medium

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  • Snyk ID SNYK-DEBIAN11-QEMU-542071
  • published 16 Jan 2020
  • disclosed 16 Jan 2020

How to fix?

Upgrade Debian:11 qemu to version 1:4.1-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.