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USN-4437-1: libslirp vulnerability

27 July 2020

libslirp could be made to crash if it received specially crafted network traffic.




Ziming Zhang and VictorV discovered that libslirp incorrectly handled
replying to certain ICMP echo requests. A remote attacker could possibly
use this issue to cause libslirp to crash, resulting in a denial of

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04

After a standard system update you need to reboot your computer to make
all the necessary changes.


Related notices

  • USN-4467-1: qemu-system-sparc, qemu-system-data, qemu-system-mips, qemu-user-binfmt, qemu-guest-agent, qemu-system, qemu-user-static, qemu-system-ppc, qemu-utils, qemu-system-gui, qemu-system-s390x, qemu-system-x86-microvm, qemu, qemu-system-x86-xen, qemu-system-x86, qemu-block-extra, qemu-system-common, qemu-system-arm, qemu-system-misc, qemu-system-aarch64, qemu-kvm, qemu-user