Ubuntu Security Notice 4572-2 - USN-4572-1 fixed a vulnerability in Spice. This update provides the corresponding update for Ubuntu 14.04 ESM. Frediano Ziglio discovered that Spice incorrectly handled QUIC image decoding. A remote attacker could use this to cause Spice to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.
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Ubuntu Security Notice USN-4572-2
October 07, 2020
spice vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
Summary:
Spice could be made to crash or run programs if it received specially
crafted network traffic.
Software Description:
- spice: SPICE protocol client and server library
Details:
USN-4572-1 fixed a vulnerability in Spice. This update provides
the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Frediano Ziglio discovered that Spice incorrectly handled QUIC image
decoding. A remote attacker could use this to cause Spice to crash,
resulting in a denial of service, or possibly execute arbitrary code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 ESM:
libspice-server1 0.12.4-0nocelt2ubuntu1.8+esm1
After a standard system update you need to restart qemu guests to make all
the necessary changes.
References:
https://usn.ubuntu.com/4572-2
https://usn.ubuntu.com/4572-1
CVE-2020-14355