CVE-2020-12723 @ Archive

"CVE-2020-12723"
"perl-5.28.1-6+deb10u1"
"perl-base-5.28.1-6+deb10u1"
"perl-doc-5.28.1-6+deb10u1"
"perl-modules-5.24-5.24.1-3+deb9u7"
"perl-modules-5.28-5.28.1-6+deb10u1"
"libalgorithm-diff-perl-1.19.03-2"
"libalgorithm-diff-xs-perl-0.04-5+b1"
"libalgorithm-merge-perl-0.08-3"
"libbit-vector-perl-7.4-1+b5"
"libcarp-clan-perl-6.07-1"
"libdate-calc-perl-6.4-1"
"libdate-calc-xs-perl-6.4-1+b4"
"libdate-manip-perl-6.76-1"
"libdpkg-perl-1.20.10"
"libfile-fcntllock-perl-0.22-3+b5"
"libfile-tail-perl-1.3-5"
"Am I vulnerable?"

Status

new

Priority

0.62

Match score

4.0

Risk

DoS Remote

CVSS

7.5 HIGH

Reason

cpe: perl; pkgs: perl; version: in-range: perl-5.28.1-6+deb10u1, perl-base-5.28.1-6+deb10u1, perl-doc-5.28.1-6+deb10u1, perl-modules-5.24-5.24.1-3+deb9u7, perl-modules-5.28-5.28.1-6+deb10u1; risk:dos

Created

2026-10-15T10:20:43Z

Updated

2026-10-20T10:18:51Z

Package interrogation (copy)

Run on the host — click to copy a command. Debian/apt

Package	Commands
perl-5.28.1-6+deb10u1
perl-base-5.28.1-6+deb10u1
perl-doc-5.28.1-6+deb10u1
perl-modules-5.24-5.24.1-3+deb9u7
perl-modules-5.28-5.28.1-6+deb10u1
libalgorithm-diff-perl-1.19.03-2
libalgorithm-diff-xs-perl-0.04-5+b1
libalgorithm-merge-perl-0.08-3
libbit-vector-perl-7.4-1+b5
libcarp-clan-perl-6.07-1
libdate-calc-perl-6.4-1
libdate-calc-xs-perl-6.4-1+b4
libdate-manip-perl-6.76-1
libdpkg-perl-1.20.10
libfile-fcntllock-perl-0.22-3+b5
libfile-tail-perl-1.3-5
liblocale-gettext-perl-1.07-3+b4
libperl5.28-5.28.1-6+deb10u1
libtext-charwidth-perl-0.04-7.1+b1
libtext-iconv-perl-1.7-5+b7
libtext-wrapi18n-perl-0.06-7.1
libtimedate-perl-2.3000-2+deb10u1

Inventory lookup

Search package inventory across systems, then return here. Create a ticket on systems the matcher missed.

Suggestions: perl · perl-base · perl-doc · perl-modules

System	Matches	Ticket for CVE-2020-12723
Archive	perl-doc 5.28.1-6+deb10u1	new open

Related CVE (same fix)

Point this ticket’s CVE at a higher-priority / same-fix primary so you only triage one.

Host OS / kernel

Debian GNU/Linux 10 (buster) (10) · debian

Arch

x86_64

kernel_release

uname -r → 5.10.0-25-amd64

kernel_version

uname -v → #1 SMP Debian 5.10.191-1 (2023-08-16)

For Linux kernel CVEs, kernel_version (Debian packaging / build string) often decides fixed vs not; kernel_release is used for upstream NVD range compares.

Same CVE on other hosts

Open the ticket for this CVE on another system.

System	Status	Priority	Updated
morris	new	7.0	2026-10-20T10:18:51Z	Open
mufasa	new	7.0	2026-10-20T10:18:51Z	Open
Library	new	1.75	2026-10-20T10:18:51Z	Open
Janus	new	0.62	2026-10-20T10:18:51Z	Open
Saiph	new	0.62	2026-10-20T10:18:51Z	Open

Description

regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.

Update status

Add note only

References

NVD: CVE-2020-12723