Buffer overflow in libslirp - CVE-2020-8608

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Main Vulnerability Database Vulnerabilities #VU25456

Buffer overflow in libslirp - CVE-2020-8608

Published: February 19, 2020 / Updated: April 28, 2020


Vulnerability identifier: #VU25456
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-8608
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within tcp_subr.c file in libslirp. A local user can pass specially crafted data to the application that is using the affected version of library, trigger memory corruption and execute arbitrary code on the system.


Affected software

libslirp
Amazon Linux AMI
Debian Linux
Gentoo Linux
CentOS
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Ubuntu
Opensuse
qemu-kvm (Red Hat package)
qemu-kvm-rhev (Red Hat package)
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
qemu-system-x86 (Ubuntu package)
qemu-system (Ubuntu package)
qemu-system-arm (Ubuntu package)
qemu-system-mips (Ubuntu package)
qemu-system-misc (Ubuntu package)
qemu-system-ppc (Ubuntu package)
qemu-system-s390x (Ubuntu package)
qemu-system-sparc (Ubuntu package)
qemu (Ubuntu package)
qemu-system-aarch64 (Ubuntu package)
qemu-system-common (Ubuntu package)
slirp4netns (Red Hat package)
slirp (Ubuntu package)
qemu-kvm-ma (Red Hat package)
qemu (Debian package)
qemu-system-x86-xen (Ubuntu package)
qemu-system-x86-microvm (Ubuntu package)
qemu-system-xen (Ubuntu package)
Oracle VM Server for x86
Red Hat OpenStack
Red Hat OpenStack for IBM Power
Red Hat Virtualization
Red Hat Virtualization for IBM Power LE
Red Hat Enterprise Linux Advanced Virtualization
Red Hat Virtualization Manager
Juniper Junos Space

How to mitigate CVE-2020-8608

Install update from vendor's website.

libslirp - update to 4.2.0
qemu-kvm (Red Hat package) - addressed in versions 0.12.1.2-2.506.el6_10.7, 1.5.3-160.el7_6.7, 1.5.3-167.el7_7.6, 1.5.3-173.el7_8.1
qemu-kvm-rhev (Red Hat package) - addressed in versions 2.12.0-18.el7_6.11, 2.12.0-33.el7_7.10, 2.12.0-44.el7_8.1
qemu-system-x86 (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu-system (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu-system-arm (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu-system-mips (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu-system-misc (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu-system-ppc (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu-system-s390x (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu-system-sparc (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24
qemu-system-aarch64 (Ubuntu package) - update to Ubuntu Pro (Infra-only)
qemu-system-common (Ubuntu package) - update to Ubuntu Pro
slirp4netns (Red Hat package) - update to 0.3.0-8.el7_7
slirp (Ubuntu package) - addressed in versions 1:1.0.17-8ubuntu16.04.1, 1:1.0.17-8ubuntu18.04.1
qemu-kvm-ma (Red Hat package) - addressed in versions 2.12.0-33.el7_7.3, 2.12.0-44.el7_8.1
qemu (Debian package) - update to 1:3.1+dfsg-8+deb10u7
qemu-system-x86-xen (Ubuntu package) - addressed in versions 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24, 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
qemu-system-x86-microvm (Ubuntu package) - addressed in versions 1:4.2-3ubuntu6.30, 1:6.2+dfsg-2ubuntu6.24
qemu-system-xen (Ubuntu package) - addressed in versions 1:8.2.2+ds-0ubuntu1.4, 1:9.0.2+ds-4ubuntu5.1
Juniper Junos Space - update to 20.3R1

External References

Related Security Bulletins