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CVE-2020-7039 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.6 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0348	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0775	CVE	Third Party Advisory
https://gitlab.freedesktop.org/slirp/libslirp/commit/2655fffed7a9e765bcb4701dd876e9dab975f289	CVE	PatchThird Party Advisory
https://gitlab.freedesktop.org/slirp/libslirp/commit/82ebe9c370a0e2970fb5695aa19aa5214a6a1c80	CVE	PatchThird Party Advisory
https://gitlab.freedesktop.org/slirp/libslirp/commit/ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9	CVE	PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00022.html	CVE	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00036.html	CVE	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00012.html	CVE	Mailing ListThird Party Advisory
https://seclists.org/bugtraq/2020/Feb/0	CVE	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202005-02	CVE	Third Party Advisory
https://usn.ubuntu.com/4283-1/	CVE	Third Party Advisory
https://www.debian.org/security/2020/dsa-4616	CVE	Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/01/16/2	CVE	Mailing ListPatchThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0348	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0775	[email protected]	Third Party Advisory
https://gitlab.freedesktop.org/slirp/libslirp/commit/2655fffed7a9e765bcb4701dd876e9dab975f289	[email protected]	PatchThird Party Advisory
https://gitlab.freedesktop.org/slirp/libslirp/commit/82ebe9c370a0e2970fb5695aa19aa5214a6a1c80	[email protected]	PatchThird Party Advisory
https://gitlab.freedesktop.org/slirp/libslirp/commit/ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9	[email protected]	PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00022.html	[email protected]	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00036.html	[email protected]	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00012.html	[email protected]	Mailing ListThird Party Advisory
https://seclists.org/bugtraq/2020/Feb/0	[email protected]	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202005-02	[email protected]	Third Party Advisory
https://usn.ubuntu.com/4283-1/	[email protected]	Third Party Advisory
https://www.debian.org/security/2020/dsa-4616	[email protected]	Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/01/16/2	[email protected]	Mailing ListPatchThird Party Advisory

see all 28 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
libslirp project libslirp	4.1.0
CPE cpe:2.3:a:libslirp_project:libslirp:4.1.0:::::::* Remediation No remediation found in references.
qemu qemu	4.2.0
CPE cpe:2.3:a:qemu:qemu:4.2.0:::::::* Remediation No remediation found in references.
debian debian linux	8.0 9.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.
opensuse leap	15.1
CPE cpe:2.3:o:opensuse:leap:15.1:::::::* Remediation No remediation found in references.

Change History

16 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 14, 2021	Modified Analysis	[email protected]
Feb 10, 2021	CVE Modified	[email protected]
Jul 17, 2020	Modified Analysis	[email protected]
May 13, 2020	CVE Modified	[email protected]
Apr 7, 2020	CVE Modified	[email protected]
Mar 11, 2020	CVE Modified	[email protected]
Feb 24, 2020	CVE Modified	[email protected]
Feb 4, 2020	CVE Modified	[email protected]
Feb 3, 2020	CVE Modified	[email protected]
Feb 3, 2020	CVE Modified	[email protected]
Jan 31, 2020	CVE Modified	[email protected]
Jan 27, 2020	CVE Modified	[email protected]
Jan 24, 2020	Initial Analysis	[email protected]

CVE-2020-7039 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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