Summary
It was discovered that QEMU incorrectly handled bochs-display devices. A
local attacker in a guest could use this to cause a denial of service or
possibly execute arbitrary code in the host. This issue only affected
Ubuntu 19.10. (CVE-2019-15034)
It was discovered that QEMU incorrectly handled memory during certain VNC
operations. A remote attacker could possibly use this issue to cause QEMU
to consume resources, resulting in a denial of service. This issue only
affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.10.
(CVE-2019-20382)
It was discovered that QEMU incorrectly generated QEMU Pointer
Authentication signatures on ARM. A local attacker could possibly use this
issue to bypass PAuth. This issue only affected Ubuntu 19.10.
(CVE-2020-10702)
Ziming Zhang discovered that QEMU incorrectly handled ATI VGA emulation. A
local attacker in a guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 20.04
LTS. (CVE-2020-11869)
Aviv Sasson discovered that QEMU incorrectly handled Slirp networking. A
remote attacker could use this issue to cause QEMU to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.10.
(CVE-2020-1983)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | qemu | 1:2.5+dfsg-5ubuntu10.44 |
| Ubuntu · 18.04 LTS 18.04:LTS | qemu | 1:2.11+dfsg-1ubuntu7.26 |
| Ubuntu · 20.04 LTS 20.04:LTS | qemu | 1:4.2-3ubuntu6.1 |
Vulnerabilities 5
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High 7.5
libslirp: use after free vulnerability cause a denial of service.
A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.
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Medium 5.5
A flaw was found in QEMU in the implementation of the Pointer Authentication (PAuth) support for ARM introduced in vers…
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Unscored —
hw/display/bochs-display.c in QEMU 4.0.0 does not ensure a sufficient PCI config space allocation, leading to a buffer …
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Unscored —
QEMU 4.1.0 has a memory leak in zrle_compress_data in ui/vnc-enc-zrle.c during a VNC disconnect operation because libz …
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Unscored —
An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs…