CVE-2020-8608: Buffer Overflow
First published: Mon Jan 27 2020(Updated: )
A out-of-bounds heap buffer access issue was found in the SLiRP networking implementation of the QEMU emulator. It occurs in tcp_emu() routine while emulating IRC and other protocols due to unsafe usage of snprintf(3) function. A user/process could use this flaw to crash the Qemu process on the host resulting in DoS or potentially execute arbitrary code with privileges of the QEMU process on the host. Also with SELinux and sVirt access control in place, malicious activity is restricted. Upstream patch: --------------- -> <a href="https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843">https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843</a> -> <a href="https://gitlab.freedesktop.org/slirp/libslirp/commit/30648c03b27fb8d9611b723184216cd3174b6775">https://gitlab.freedesktop.org/slirp/libslirp/commit/30648c03b27fb8d9611b723184216cd3174b6775</a> Reference: ---------- -> <a href="https://www.openwall.com/lists/oss-security/2020/02/06/2">https://www.openwall.com/lists/oss-security/2020/02/06/2</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/qemu-kvm | <2:0.12.1.2-2.506.el6_10.7 | 2:0.12.1.2-2.506.el6_10.7 |
| redhat/qemu-kvm | <10:1.5.3-173.el7_8.1 | 10:1.5.3-173.el7_8.1 |
| redhat/qemu-kvm-ma | <10:2.12.0-44.el7_8.1 | 10:2.12.0-44.el7_8.1 |
| redhat/qemu-kvm | <10:1.5.3-160.el7_6.7 | 10:1.5.3-160.el7_6.7 |
| redhat/qemu-kvm | <10:1.5.3-167.el7_7.6 | 10:1.5.3-167.el7_7.6 |
| redhat/qemu-kvm-ma | <10:2.12.0-33.el7_7.3 | 10:2.12.0-33.el7_7.3 |
| redhat/slirp4netns | <0:0.3.0-8.el7_7 | 0:0.3.0-8.el7_7 |
| redhat/atomic-enterprise-service-catalog | <1:4.3.3-202002170501.git.1.f30799e.el7 | 1:4.3.3-202002170501.git.1.f30799e.el7 |
| redhat/atomic-openshift-service-idler | <0:4.3.3-202002170501.git.1.4feff9c.el7 | 0:4.3.3-202002170501.git.1.4feff9c.el7 |
| redhat/cri-o | <0:1.16.3-20.dev.rhaos4.3.git11c04e3.el7 | 0:1.16.3-20.dev.rhaos4.3.git11c04e3.el7 |
| redhat/cri-tools | <0:1.17.0-1.el8 | 0:1.17.0-1.el8 |
| redhat/dracut | <0:049-64.git20200123.el8 | 0:049-64.git20200123.el8 |
| redhat/jenkins | <0:2.204.1.1581950993-1.el7 | 0:2.204.1.1581950993-1.el7 |
| redhat/jenkins | <2-plugins-0:4.3.1581956184-1.el7 | 2-plugins-0:4.3.1581956184-1.el7 |
| redhat/machine-config-daemon | <0:4.3.3-202002170501.git.1.6b1b155.el8 | 0:4.3.3-202002170501.git.1.6b1b155.el8 |
| redhat/openshift | <0:4.3.3-202002140552.git.0.e38059c.el7 | 0:4.3.3-202002140552.git.0.e38059c.el7 |
| redhat/openshift-ansible | <0:4.3.3-202002142331.git.173.bb0b5a1.el7 | 0:4.3.3-202002142331.git.173.bb0b5a1.el7 |
| redhat/openshift-clients | <0:4.3.3-202002140552.git.1.ff73b47.el7 | 0:4.3.3-202002140552.git.1.ff73b47.el7 |
| redhat/openshift-kuryr | <0:4.3.3-202002170501.git.1.3b8b4cc.el8 | 0:4.3.3-202002170501.git.1.3b8b4cc.el8 |
| redhat/slirp4netns | <0:0.4.2-4.git21fdece.el8 | 0:0.4.2-4.git21fdece.el8 |
| redhat/toolbox | <0:0.0.6-1.rhaos4.3.el8 | 0:0.0.6-1.rhaos4.3.el8 |
| redhat/qemu-kvm-rhev | <10:2.12.0-33.el7_7.10 | 10:2.12.0-33.el7_7.10 |
| redhat/qemu-kvm-rhev | <10:2.12.0-44.el7_8.1 | 10:2.12.0-44.el7_8.1 |
| redhat/qemu-kvm-rhev | <10:2.12.0-18.el7_6.11 | 10:2.12.0-18.el7_6.11 |
| Libslirp Project Libslirp | =4.1.0 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| openSUSE Leap | =15.1 | |
| redhat/libslirp | <4.3.0 | 4.3.0 |
| debian/libslirp | 4.4.0-1+deb11u2 4.7.0-1 4.8.0-1 | |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.1.1+ds-5 | |
| debian/slirp | 1:1.0.17-11 | |
| debian/slirp4netns | 1.0.1-2 1.2.0-1 1.2.1-1 |
Remedy
This issue can only be resolved by applying updates. Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2020-8608 https://nvd.nist.gov/vuln/detail/CVE-2020-8608
- https://bugzilla.redhat.com/show_bug.cgi?id=1798453
- https://access.redhat.com/errata/RHSA-2020:1261
- https://access.redhat.com/errata/RHSA-2020:1403
- https://access.redhat.com/errata/RHSA-2020:1208
- https://access.redhat.com/errata/RHSA-2020:1209
- https://access.redhat.com/errata/RHSA-2020:2844
- https://access.redhat.com/errata/RHSA-2020:1351
- https://access.redhat.com/errata/RHSA-2020:1352
- https://access.redhat.com/errata/RHSA-2020:0889
- https://access.redhat.com/errata/RHSA-2020:1379
- https://access.redhat.com/errata/RHSA-2020:2774
- https://access.redhat.com/errata/RHSA-2020:3040
- https://access.redhat.com/errata/RHSA-2020:2773
- https://access.redhat.com/errata/RHBA-2020:0527
- https://access.redhat.com/errata/RHSA-2020:1300
- https://access.redhat.com/errata/RHSA-2020:2730
- https://access.redhat.com/errata/RHSA-2020:1292
- https://access.redhat.com/errata/RHSA-2020:2342
- https://access.redhat.com/security/cve/cve-2020-8608
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
- https://gitlab.freedesktop.org/slirp/libslirp/-/tags/v4.1.0
- https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843
- https://lists.debian.org/debian-lts-announce/2020/03/msg00015.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00017.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
- https://lists.debian.org/debian-lts-announce/2021/02/msg00012.html
- https://security.gentoo.org/glsa/202003-66
- https://security.netapp.com/advisory/ntap-20201001-0002/
- https://usn.ubuntu.com/4283-1/
- https://www.debian.org/security/2020/dsa-4733
- https://www.openwall.com/lists/oss-security/2020/02/06/2
- https://launchpad.net/bugs/cve/CVE-2020-8608
- https://gitlab.freedesktop.org/slirp/libslirp/commit/30648c03b27fb8d9611b723184216cd3174b6775
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1798454
- https://access.redhat.com/support/policy/updates/errata/
- https://github.com/rootless-containers/slirp4netns/security/advisories/GHSA-p3hx-89v2-4r99
- https://security-tracker.debian.org/tracker/CVE-2020-8608
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8608
- https://nvd.nist.gov/vuln/detail/CVE-2020-8608
- https://ubuntu.com/security/CVE-2020-8608
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/remedy
- agent/severity
- agent/weakness
- agent/description
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2020-8608
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/libslirp project
- canonical/libslirp project libslirp
- version/libslirp project libslirp/4.1.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- version/debian debian linux/10.0
- vendor/opensuse
- canonical/opensuse leap
- version/opensuse leap/15.1
- package-manager/debian