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MitreCVE-2020-7039

HistoryJan 16, 2020 - 11:15 p.m.

CVE-2020-7039

2020-01-1623:15:12

CWE-787

mitre

web.nvd.nist.gov

404

cve-2020-7039

libslirp

tcp_emu

memory mismanagement

heap-based buffer overflow

out-of-bounds access

dos

execute arbitrary code

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

5.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

AI Score

6.7

Confidence

High

EPSS

0.004

Percentile

72.3%

JSON

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.

Affected configurations

Nvd

Node

libslirp_projectlibslirpMatch4.1.0

Node

qemuqemuMatch4.2.0

debiandebian_linuxMatch8.0

debiandebian_linuxMatch9.0

opensuseleapMatch15.1

VendorProductVersionCPE
libslirp_projectlibslirp4.1.0cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:*
qemuqemu4.2.0cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:*
debiandebian_linux8.0cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
opensuseleap15.1cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
libslirp_project	libslirp	4.1.0	cpe:2.3:a:libslirp_project:libslirp:4.1.0:::::::*
qemu	qemu	4.2.0	cpe:2.3:a:qemu:qemu:4.2.0:::::::*
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*
opensuse	leap	15.1	cpe:2.3:o:opensuse:leap:15.1:::::::*