USN-4632-1: SLiRP vulnerabilities
12 November 2020
slirp could be made to crash if it received specially crafted input.
Releases
Packages
- slirp - SLIP/PPP emulator using a dial up shell account
Details
It was discovered that the SLiRP networking implementation of the QEMU
emulator did not properly manage memory under certain circumstances. An
attacker could use this to cause a heap-based buffer overflow or other out-
of-bounds access, which can lead to a denial of service (application crash)
or potentially execute arbitrary code. (CVE-2020-7039)
It was discovered that the SLiRP networking implementation of the QEMU
emulator misuses snprintf return values. An attacker could use this to
cause a denial of service (application crash) or potentially execute
arbitrary code. (CVE-2020-8608)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04
Ubuntu 16.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-4283-1: qemu-system-data, qemu-system-common, qemu-utils, qemu-system-mips, qemu-guest-agent, qemu, qemu-system-arm, qemu-system-misc, qemu-kvm, qemu-user-binfmt, qemu-system-x86, qemu-block-extra, qemu-user, qemu-system-s390x, qemu-user-static, qemu-system-sparc, qemu-system-aarch64, qemu-system-ppc, qemu-system-gui, qemu-system
- USN-7094-1: qemu-system-data, qemu-system-common, qemu-utils, qemu-system-modules-spice, qemu-system-mips, qemu-guest-agent, qemu, qemu-system-arm, qemu-system-misc, qemu-common, qemu-kvm, qemu-user-binfmt, qemu-system-x86, qemu-system-x86-xen, qemu-keymaps, qemu-system-x86-microvm, qemu-block-extra, qemu-system-xen, qemu-user, qemu-system-modules-opengl, qemu-system-s390x, qemu-system-sparc, qemu-user-static, qemu-system-aarch64, qemu-system-ppc, qemu-block-supplemental, qemu-system-gui, qemu-system