Executive Summary

Summary
Titleslirp4netns security update
Informations
NameRHSA-2020:0889First vendor Publication2020-03-17
VendorRedHatLast vendor Modification2020-03-17
Severity (Vendor) N/ARevision01

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:P/I:P/A:P)
Cvss Base Score6.5Attack RangeNetwork
Cvss Impact Score6.4Attack ComplexityLow
Cvss Expoit Score8AuthenticationRequires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An update for slirp4netns is now available for Red Hat Enterprise Linux 7 Extras.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux 7 Extras - ppc64le, s390x, x86_64

3. Description:

The slirp4netns package contains user-mode networking for unprivileged network namespaces. It is required to enable networking for rootless containers.

Security Fix(es):

* QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378)

* QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039)

* CVE-2020-8608 slirp4netns: QEMU: Slirp: potential OOB access due to unsafe snprintf() usages

* CVE-2019-15890 QEMU: Slirp: use-after-free during packet reassembly

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1734745 - CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly 1749716 - CVE-2019-15890 QEMU: Slirp: use-after-free during packet reassembly 1791551 - CVE-2020-7039 QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() 1798453 - CVE-2020-8608 QEMU: Slirp: potential OOB access due to unsafe snprintf() usages

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2020-0889.html

CWE : Common Weakness Enumeration

%idName
50 %CWE-416Use After Free
50 %CWE-119Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application2
Application1

Alert History

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0
DateInformations
2020-03-19 13:20:08
  • First insertion