Buffer overflow in Perl - CVE-2020-12723

Vulnerability identifier: #VU29016

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-12723

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) áttack.

The vulnerability exists due to a boundary error within the recursive "S_study_chunk" calls. A remote attacker can use a specially crafted regular expression , trigger memory corruption and cause a denial of service condition on the target system.

Perl
Gentoo Linux
ClevOS
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
CentOS
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
IBM AIX
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Anolis OS
Ubuntu
Opensuse
openEuler
Fedora
Netezza Appliance
Business Automation Insights
Data Computing Appliance (DCA)
WordPress Gallery Plugin - NextGEN Gallery
IBM VIOS
IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data
IBM Watson Assistant for IBM Cloud Pak for Data
Red Hat Advanced Cluster Management for Kubernetes
perl (Alpine package)
perl (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
perl-Module-Loaded
perl-Locale-Maketext-Simple
perl-Attribute-Handlers
perl-Memoize
perl-ExtUtils-Miniperl
perl-Devel-SelfStubber
perl-IO-Zlib
perl-open
perl-Pod-Html
perl-SelfLoader
perl-Devel-Peek
perl-Errno
perl-Test
perl-Time-Piece
perl-ExtUtils-Embed
perl-IO
perl-Math-Complex
perl-Net-Ping
perl (Ubuntu package)
perl516 (Red Hat package)
perl-utils
perl-libs
perl-libnetcfg
perl-macros
perl-interpreter
perl-devel
perl
perl-tests
perl-debuginfo
perl-debugsource
perl-help
IBM Security Guardium
watsonx.data
Cloud Pak for Data
Juniper Junos Space

Install updates from vendor's website.

Perl - update to 5.30.3
Netezza Appliance - update to 1.0.0.1
IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data - addressed in versions 4.5.1, 4.8.0
IBM Watson Assistant for IBM Cloud Pak for Data - update to 4.7.0
perl (Alpine package) - update to 5.26.3-r1
perl (Red Hat package) - addressed in versions 5.16.3-294.el7_6.1, 5.16.3-294.el7_7.1, 5.16.3-299.el7_9, 5.26.3-417.el8_2, 5.26.3-417.el8_3
Business Automation Insights - addressed in versions 24.0.0.0.6, 24.0.1.0.6, 25.0.0.0.3
perl-Module-Loaded - update to 0.08-417
perl-Locale-Maketext-Simple - update to 0.21-417
perl-Attribute-Handlers - update to 0.99-417
perl-Memoize - update to 1.03-417
perl-ExtUtils-Miniperl - update to 1.06-417
perl-Devel-SelfStubber - update to 1.06-417
perl-IO-Zlib - update to 1.10-417
perl-open - update to 1.11-417
perl-Pod-Html - update to 1.22.02-417
perl-SelfLoader - update to 1.23-417
perl-Devel-Peek - update to 1.26-417
perl-Errno - update to 1.28-417
perl-Test - update to 1.30-417
perl-Time-Piece - update to 1.31-417
perl-ExtUtils-Embed - update to 1.34-417
perl-IO - update to 1.38-417
perl-Math-Complex - update to 1.59-417
watsonx.data - addressed in versions 2.0.2, 2.0.3
Red Hat Advanced Cluster Management for Kubernetes - addressed in versions 2.0.8, 2.1.3
perl-Net-Ping - update to 2.55-417
Data Computing Appliance (DCA) - update to 4.3.0.0
Cloud Pak for Data - update to 4.8.5
perl (Ubuntu package) - addressed in versions 5.14.2-6ubuntu2.11, 5.18.2-2ubuntu1.7+esm3, 5.22.1-9ubuntu0.9, 5.26.1-6ubuntu0.5, 5.30.0-9ubuntu0.2
perl516 (Red Hat package) - update to 5.16.3-292.el7_4.2
perl-utils - update to 5.26.3-417
perl-libs - update to 5.26.3-417
perl-libnetcfg - update to 5.26.3-417
perl-macros - update to 5.26.3-417
perl-interpreter - update to 5.26.3-417
perl-devel - update to 5.26.3-417
perl - update to 5.26.3-417
perl-tests - update to 5.26.3-417
perl - update to 5.28.0-435
perl-debuginfo - update to 5.28.0-435
perl-debugsource - update to 5.28.0-435
perl-devel - update to 5.28.0-435
perl-help - update to 5.28.0-435
perl-libs - update to 5.28.0-435
perl - addressed in versions 5.30.3-452.fc31, 5.30.3-453.fc32, 5.30-3120200602094358.a9ea5770, 5.30-3220200602094358.35f641a4
Juniper Junos Space - update to 21.2R1

• https://github.com/Perl/perl5/blob/blead/pod/perl5303delta.pod
• https://github.com/perl/perl5/commit/66bbb51b93253a3f87d11c2695cfb7bdb782184a
• https://github.com/Perl/perl5/compare/v5.30.2...v5.30.3
• https://github.com/Perl/perl5/issues/16947
• https://github.com/Perl/perl5/issues/17743
• https://security.gentoo.org/glsa/202006-03
• https://security.netapp.com/advisory/ntap-20200611-0001/

• Multiple vulnerabilities in Perl
• Gentoo update for Perl
• OpenSUSE Linux update for perl
• Buffer overflow in perl (Alpine package)
• IBM AIX update for Perl
• IBM VIOS update for Perl
• Red Hat Enterprise Linux 7 update for perl
• CentOS 7 update for perl
• Red Hat Enterprise Linux 8 update for perl
• Red Hat Enterprise Linux 7 update for perl
• Red Hat Enterprise Linux 7.4 update for perl
• Red Hat Enterprise Linux 8.2 update for perl
• Multiple vulnerabilities in Junos Space
• ClevOS update for IBM Cloud Object Storage Systems
• Multiple vulnerabilities in Dell EMC Data Computing Appliance (DCA)
• Buffer overflow in IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data
• Red Hat Enterprise Linux 7.7 Extended Update Support update for perl
• Multiple vulnerabilities in IBM Security Guardium
• Multiple vulnerabilities in IBM Watson Assistant for IBM Cloud Pak for Data
• Multiple vulnerabilities in IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data
• Multiple vulnerabilities in IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data
• openEuler 20.03 LTS update for perl-5.28.0-434
• Multiple vulnerabilities in Cloud Pak for Data
• Multiple vulnerabilities in IBM watsonx.data
• IBM watsonx.data update for FasterXML jackson-databind
• Multiple vulnerabilities in Red Hat Advanced Cluster Management for Kubernetes 2.1
• Multiple vulnerabilities in Red Hat Advanced Cluster Management for Kubernetes 2.0
• Anolis OS update for perl
• Ubuntu update for perl
• Ubuntu update for perl
• Fedora 31 update for perl
• Fedora 32 update for perl
• Fedora 32 Modular update for perl
• Fedora 31 Modular update for perl
• Multiple vulnerabilities in IBM Netezza Appliance
• Multiple vulnerabilities in IBM Business Automation Insights