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centosCentOS ProjectCESA-2021:0343
HistoryFeb 04, 2021 - 1:04 a.m.

perl security update

2021-02-0401:04:16
CentOS Project
lists.centos.org
188

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.003 Low

EPSS

Percentile

70.0%

CentOS Errata and Security Advisory CESA-2021:0343

Perl is a high-level programming language that is commonly used for system administration utilities and web programming.

Security Fix(es):

  • perl: heap-based buffer overflow in regular expression compiler leads to DoS (CVE-2020-10543)

  • perl: corruption of intermediate language state of compiled regular expression due to integer overflow leads to DoS (CVE-2020-10878)

  • perl: corruption of intermediate language state of compiled regular expression due to recursive S_study_chunk() calls leads to DoS (CVE-2020-12723)

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.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2021-February/086050.html

Affected packages:
perl
perl-CPAN
perl-ExtUtils-CBuilder
perl-ExtUtils-Embed
perl-ExtUtils-Install
perl-IO-Zlib
perl-Locale-Maketext-Simple
perl-Module-CoreList
perl-Module-Loaded
perl-Object-Accessor
perl-Package-Constants
perl-Pod-Escapes
perl-Time-Piece
perl-core
perl-devel
perl-libs
perl-macros
perl-tests

Upstream details at:
https://access.redhat.com/errata/RHSA-2021:0343

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.003 Low

EPSS

Percentile

70.0%