Gentoo Linux Security Advisory 202011-9 - Multiple vulnerabilities have been found in QEMU, the worst of which could result in the arbitrary execution of code. Versions less than 5.1.0-r1 are affected.
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Ubuntu Security Notice 4467-1 - Ziming Zhang and VictorV discovered that the QEMU SLiRP networking implementation incorrectly handled replying to certain ICMP echo requests. An attacker inside a guest could possibly use this issue to leak host memory to obtain sensitive information. This issue only affected Ubuntu 18.04 LTS. Eric Blake and Xueqiang Wei discovered that the QEMU NDB implementation incorrectly handled certain requests. A remote attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS. Various other issues were also addressed.
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