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AUSCERT External Security Bulletin Redistribution
ESB-2020.3456.2
USN-4572-1: Spice vulnerability
8 October 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: spice
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-14355
Reference: ESB-2020.3455
Original Bulletin:
https://usn.ubuntu.com/4572-1/
https://usn.ubuntu.com/4572-2/
Comment: This bulletin contains two (2) Ubuntu security advisories.
Revision History: October 8 2020: Additional release affected, Ubuntu 14.04 ESM.
October 7 2020: Initial Release
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USN-4572-1: Spice vulnerability
06 October 2020
Spice could be made to crash or run programs if it received specially
crafted network traffic.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
o spice - SPICE protocol client and server library
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 20.04
o libspice-server1 - 0.14.2-4ubuntu3.1
Ubuntu 18.04
o libspice-server1 - 0.14.0-1ubuntu2.5
Ubuntu 16.04
o libspice-server1 - 0.12.6-4ubuntu0.5
After a standard system update you need to restart qemu guests to make all
the necessary changes.
References
o CVE-2020-14355
- ------------------------------------------------------------------------------
USN-4572-2: Spice vulnerability
07 October 2020
Spice could be made to crash or run programs if it received specially
crafted network traffic.
Releases
o Ubuntu 14.04 ESM
Packages
o 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
o 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
o CVE-2020-14355
Related notices
o USN-4572-1 : spice, libspice-server1
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