[USN-5009-2] libslirp vulnerabilities
marc.deslauriers at canonical.com
Tue Oct 26 15:07:45 UTC 2021
Ubuntu Security Notice USN-5009-2
October 26, 2021
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.10
Several security issues were fixed in libslirp.
- libslirp: General purpose TCP-IP emulator library
USN-5009-1 fixed vulnerabilities in libslirp. This update provides the
corresponding updates for Ubuntu 21.10.
Original advisory details:
Qiuhao Li discovered that libslirp incorrectly handled certain header data
lengths. An attacker inside a guest could possibly use this issue to leak
sensitive information from the host. This issue only affected Ubuntu 20.04
LTS and Ubuntu 20.10. (CVE-2020-29129, CVE-2020-29130)
It was discovered that libslirp incorrectly handled certain udp packets. An
attacker inside a guest could possibly use this issue to leak sensitive
information from the host. (CVE-2021-3592, CVE-2021-3593, CVE-2021-3594,
The problem can be corrected by updating your system to the following
After a standard system update you need to reboot your computer to make
all the necessary changes.
CVE-2021-3592, CVE-2021-3593, CVE-2021-3594, CVE-2021-3595
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