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Red Hat: RHSA-2019-4326-01 Important: Fribidi Buffer Overflow Exploit

red hat
Calendar Grey December 19, 2019
Dist Redhat Esm H88
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An update for fribidi is now available for Red Hat Enterprise Linux 7

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

Summary

A library to handle bidirectional scripts (for example Hebrew, Arabic), so that the display is done in the proper way, while the text data itself is always written in logical order.
Security Fix(es):
* fribidi: buffer overflow in fribidi_get_par_embedding_levels_ex() in lib/fribidi-bidi.c leading to denial of service and possible code execution (CVE-2019-18397)
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.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat update buffer overflow important fribidi

References

https://access.redhat.com/security/cve/CVE-2019-18397 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: fribidi-1.0.2-1.el7_7.1.src.rpm
x86_64: fribidi-1.0.2-1.el7_7.1.i686.rpm fribidi-1.0.2-1.el7_7.1.x86_64.rpm fribidi-debuginfo-1.0.2-1.el7_7.1.i686.rpm fribidi-debuginfo-1.0.2-1.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: fribidi-debuginfo-1.0.2-1.el7_7.1.i686.rpm fribidi-debuginfo-1.0.2-1.el7_7.1.x86_64.rpm fribidi-devel-1.0.2-1.el7_7.1.i686.rpm fribidi-devel-1.0.2-1.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: fribidi-1.0.2-1.el7_7.1.src.rpm
x86_64: fribidi-1.0.2-1.el7_7.1.i686.rpm fribidi-1.0.2-1.el7_7.1.x86_64.rpm fribidi-debuginfo-1.0.2-1.el7_7.1.i686.rpm fribidi-debuginfo-1.0.2-1.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: fribidi-debuginfo-1.0.2-1.el7_7.1.i686.rpm fribidi-debuginfo-1.0.2-1.el7_7.1.x86_64.rpm fribidi-devel-1.0.2-1.el7_7.1.i686.rpm fribidi-devel-1.0.2-1.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: fribidi-1.0.2-1.el7_7.1.src.rpm
ppc64: fribidi-1.0.2-1.el7_7.1.ppc.rpm fribidi-1.0.2-1.el7_7.1.ppc64.rpm fribidi-debuginfo-1.0.2-1.el7_7.1.ppc.rpm fribidi-debuginfo-1.0.2-1.el7_7.1.ppc64.rpm fribidi-devel-1.0.2-1.el7_7.1.ppc.rpm fribidi-devel-1.0.2-1.el7_7.1.ppc64.rpm
ppc64le:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:4326-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:4326
Issue date: 2019-12-19

Topic

An update for fribidi is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat update buffer overflow important fribidi

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Bugs Fixed

1768750 - CVE-2019-18397 fribidi: buffer overflow in fribidi_get_par_embedding_levels_ex() in lib/fribidi-bidi.c leading to denial of service and possible code execution

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