CVE-2020-7039 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.6 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html Third Party Advisory 
http://www.openwall.com/lists/oss-security/2020/01/16/2 Mailing List  Patch  Third Party Advisory 
https://access.redhat.com/errata/RHSA-2020:0348 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2020:0775 Third Party Advisory 
https://gitlab.freedesktop.org/slirp/libslirp/commit/2655fffed7a9e765bcb4701dd876e9dab975f289 Patch  Third Party Advisory 
https://gitlab.freedesktop.org/slirp/libslirp/commit/82ebe9c370a0e2970fb5695aa19aa5214a6a1c80 Patch  Third Party Advisory 
https://gitlab.freedesktop.org/slirp/libslirp/commit/ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9 Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2020/01/msg00022.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2020/01/msg00036.html Mailing List  Third Party Advisory 
https://seclists.org/bugtraq/2020/Feb/0 Mailing List  Third Party Advisory 
https://security.gentoo.org/glsa/202005-02 Third Party Advisory 
https://usn.ubuntu.com/4283-1/ Third Party Advisory 
https://www.debian.org/security/2020/dsa-4616 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-7039
NVD Published Date:
01/16/2020
NVD Last Modified:
07/17/2020
Source:
MITRE