CVE-2020-7039medium
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.
References
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
http://www.openwall.com/lists/oss-security/2020/01/16/2
https://access.redhat.com/errata/RHSA-2020:0348
https://access.redhat.com/errata/RHSA-2020:0775
https://gitlab.freedesktop.org/slirp/libslirp/commit/2655fffed7a9e765bcb4701dd876e9dab975f289
https://gitlab.freedesktop.org/slirp/libslirp/commit/82ebe9c370a0e2970fb5695aa19aa5214a6a1c80
https://gitlab.freedesktop.org/slirp/libslirp/commit/ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9
https://lists.debian.org/debian-lts-announce/2020/01/msg00022.html
https://lists.debian.org/debian-lts-announce/2020/01/msg00036.html
https://lists.debian.org/debian-lts-announce/2021/02/msg00012.html
https://seclists.org/bugtraq/2020/Feb/0
https://security.gentoo.org/glsa/202005-02
Details
Source: MITRE
Published: 2020-01-16
Updated: 2021-02-14
Type: CWE-787
Risk Information
CVSS v2
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
CVSS v3
Base Score: 5.6
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Impact Score: 3.4
Exploitability Score: 2.2
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
Configuration 2
OR
cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 151383 | EulerOS Virtualization 3.0.2.2 : qemu-kvm (EulerOS-SA-2021-2166) | Nessus | Huawei Local Security Checks | critical |
| 150615 | SUSE SLES11 Security Update : kvm (SUSE-SU-2020:14396-1) | Nessus | SuSE Local Security Checks | medium |
| 147700 | EulerOS Virtualization 2.9.0 : qemu (EulerOS-SA-2021-1667) | Nessus | Huawei Local Security Checks | medium |
| 147523 | EulerOS Virtualization 2.9.1 : qemu (EulerOS-SA-2021-1632) | Nessus | Huawei Local Security Checks | medium |
| 147408 | NewStart CGSL MAIN 4.06 : qemu-kvm Multiple Vulnerabilities (NS-SA-2021-0004) | Nessus | NewStart CGSL Local Security Checks | medium |
| 146372 | Debian DLA-2551-1 : slirp security update | Nessus | Debian Local Security Checks | medium |
| 145994 | CentOS 8 : container-tools:1.0 (CESA-2020:1360) | Nessus | CentOS Local Security Checks | medium |
| 145992 | CentOS 8 : virt:rhel (CESA-2020:1358) | Nessus | CentOS Local Security Checks | medium |
| 143039 | RHEL 8 : container-tools:1.0 (RHSA-2020:1360) | Nessus | Red Hat Local Security Checks | medium |
| 142969 | Ubuntu 16.04 LTS / 18.04 LTS : SLiRP vulnerabilities (USN-4632-1) | Nessus | Ubuntu Local Security Checks | medium |
| 140275 | NewStart CGSL MAIN 4.05 : qemu-kvm Multiple Vulnerabilities (NS-SA-2020-0049) | Nessus | NewStart CGSL Local Security Checks | medium |
| 140033 | Oracle Linux 8 : container-tools:ol8 (ELSA-2020-0348) | Nessus | Oracle Linux Local Security Checks | medium |
| 135664 | Oracle Linux 8 : virt:ol (ELSA-2020-1358) | Nessus | Oracle Linux Local Security Checks | medium |
| 139382 | RHEL 8 : virt:rhel (RHSA-2020:1358) | Nessus | Red Hat Local Security Checks | medium |
| 139088 | Amazon Linux AMI : qemu-kvm (ALAS-2020-1408) | Nessus | Amazon Linux Local Security Checks | medium |
| 138642 | Amazon Linux AMI : qemu-kvm (ALAS-2020-1400) | Nessus | Amazon Linux Local Security Checks | medium |
| 138073 | RHEL 7 : slirp4netns (RHSA-2020:0889) | Nessus | Red Hat Local Security Checks | medium |
| 137795 | EulerOS Virtualization for ARM 64 3.0.6.0 : qemu-kvm (EulerOS-SA-2020-1688) | Nessus | Huawei Local Security Checks | medium |
| 137758 | RHEL 7 : qemu-kvm-rhev (RHSA-2020:2730) | Nessus | Red Hat Local Security Checks | medium |
| 137586 | SUSE SLES12 Security Update : qemu (SUSE-SU-2020:1538-1) | Nessus | SuSE Local Security Checks | medium |
| 137581 | SUSE SLES12 Security Update : qemu (SUSE-SU-2020:1526-1) | Nessus | SuSE Local Security Checks | medium |
| 137579 | SUSE SLES15 Security Update : qemu (SUSE-SU-2020:1523-1) | Nessus | SuSE Local Security Checks | medium |
| 137577 | SUSE SLES12 Security Update : qemu (SUSE-SU-2020:1514-1) | Nessus | SuSE Local Security Checks | medium |
| 137549 | SUSE SLES12 Security Update : qemu (SUSE-SU-2020:1501-1) | Nessus | SuSE Local Security Checks | medium |
| 137489 | EulerOS 2.0 SP2 : qemu-kvm (EulerOS-SA-2020-1647) | Nessus | Huawei Local Security Checks | high |
| 136539 | GLSA-202005-02 : QEMU: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | medium |
| 135559 | EulerOS 2.0 SP3 : qemu-kvm (EulerOS-SA-2020-1430) | Nessus | Huawei Local Security Checks | critical |
| 135340 | CentOS 7 : qemu-kvm (CESA-2020:1116) | Nessus | CentOS Local Security Checks | critical |
| 135265 | openSUSE Security Update : qemu (openSUSE-2020-468) | Nessus | SuSE Local Security Checks | medium |
| 135253 | RHEL 8 : virt:rhel (RHSA-2020:1344) | Nessus | Red Hat Local Security Checks | medium |
| 135249 | RHEL 7 : qemu-kvm-ma (RHSA-2020:1352) | Nessus | Red Hat Local Security Checks | medium |
| 135245 | RHEL 7 : qemu-kvm (RHSA-2020:1351) | Nessus | Red Hat Local Security Checks | medium |
| 135176 | RHEL 7 : qemu-kvm-rhev (RHSA-2020:1296) | Nessus | Red Hat Local Security Checks | medium |
| 135173 | RHEL 7 : qemu-kvm-rhev (RHSA-2020:1300) | Nessus | Red Hat Local Security Checks | medium |
| 135169 | SUSE SLES12 Security Update : qemu (SUSE-SU-2020:0845-1) | Nessus | SuSE Local Security Checks | medium |
| 135168 | SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2020:0844-1) | Nessus | SuSE Local Security Checks | medium |
| 135051 | RHEL 7 : qemu-kvm-ma (RHSA-2020:1150) | Nessus | Red Hat Local Security Checks | medium |
| 135036 | RHEL 7 : qemu-kvm (RHSA-2020:1116) | Nessus | Red Hat Local Security Checks | medium |
| 134898 | Amazon Linux 2 : qemu (ALAS-2020-1407) | Nessus | Amazon Linux Local Security Checks | medium |
| 134790 | EulerOS 2.0 SP8 : qemu (EulerOS-SA-2020-1298) | Nessus | Huawei Local Security Checks | medium |
| 134611 | OracleVM 3.4 : qemu-kvm (OVMSA-2020-0010) | Nessus | OracleVM Local Security Checks | medium |
| 134395 | Scientific Linux Security Update : qemu-kvm on SL6.x i386/x86_64 (20200310) | Nessus | Scientific Linux Local Security Checks | medium |
| 134393 | RHEL 6 : qemu-kvm (RHSA-2020:0775) | Nessus | Red Hat Local Security Checks | critical |
| 134388 | Oracle Linux 6 : qemu-kvm (ELSA-2020-0775) | Nessus | Oracle Linux Local Security Checks | critical |
| 134386 | CentOS 6 : qemu-kvm (CESA-2020:0775) | Nessus | CentOS Local Security Checks | critical |
| 133796 | Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : QEMU vulnerabilities (USN-4283-1) | Nessus | Ubuntu Local Security Checks | medium |
| 133481 | RHEL 8 : container-tools:rhel8 (RHSA-2020:0348) | Nessus | Red Hat Local Security Checks | critical |
| 133419 | Debian DSA-4616-1 : qemu - security update | Nessus | Debian Local Security Checks | medium |
| 133366 | Debian DLA-2090-1 : qemu security update | Nessus | Debian Local Security Checks | critical |
| 133229 | Debian DLA-2076-1 : slirp security update | Nessus | Debian Local Security Checks | critical |