CVE-2023-45853 @ mufasa

"CVE-2023-45853"
"zlib-1.2.7-21.0.1.el7_9.tuxcare.els2"
"zlib-devel-1.2.7-21.0.1.el7_9.tuxcare.els2"
"Am I vulnerable?"

Status

new

Priority

9.8

Match score

4.0

Risk

MemCorrupt Remote priv:user

CVSS

9.8 CRITICAL

Reason

cpe: zlib; pkgs: zlib; version: in-range: zlib-1.2.7-21.0.1.el7_9.tuxcare.els2, zlib-devel-1.2.7-21.0.1.el7_9.tuxcare.els2; risk:memory_corruption

Created

2026-10-15T10:20:08Z

Updated

2026-10-20T10:18:22Z

Package interrogation (copy)

Run on the host — click to copy a command. RPM

Package	Commands
zlib-1.2.7-21.0.1.el7_9.tuxcare.els2
zlib-devel-1.2.7-21.0.1.el7_9.tuxcare.els2

Inventory lookup

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

Suggestions: zlib · zlib-devel

System	Matches	Ticket for CVE-2023-45853
morris	imunify360-webshield-zlib 1.3.2; perl-Compress-Raw-Zlib 2.061; perl-IO-Zlib 1.10; zlib 1.2.7; zlib-devel 1.2.7	new open
mufasa	perl-Compress-Raw-Zlib 2.061; perl-IO-Zlib 1.10; zlib 1.2.7; zlib-devel 1.2.7	new open
Archive	zlib1g 1:1.2.11.dfsg-2+deb11u2	none
Bullseye	zlib1g 1:1.2.11.dfsg-2+deb11u2	none
Helios	zlib1g 1:1.2.11.dfsg-2+deb11u2; zlib1g-dev 1:1.2.11.dfsg-2+deb11u2	none
Janus	zlib1g 1:1.2.11.dfsg-1+deb10u2	none
Library	zlib1g 1:1.2.8.dfsg-5+deb9u1	none
Matrix	zlib1g 1:1.2.13.dfsg-1	none
Saiph	zlib1g 1:1.2.11.dfsg-1+deb10u2	none
Silk	imunify360-webshield-zlib 1.3.2-1; zlib1g 1:1.2.13.dfsg-1; zlib1g-dev 1:1.2.13.dfsg-1	none

Same product CVEs in your queue

Other open tickets that look like the same product. Closed tickets are omitted unless they are already pegged to this CVE.

CVE	CVSS	Systems	Status	Matched	Already related
CVE-2022-37434	9.8	morris, mufasa	new	zlib-devel	—
CVE-2026-102560	8.6	Archive, Library, Saiph	new	zlib	—
CVE-2025-0725	7.3	Archive, Helios, Janus, Library, Matrix …	new	zlib	—

Related CVE (same fix)

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

Host OS / kernel

CloudLinux release 7.9 (Boris Yegorov) (7.9) · cloudlinux

Arch

x86_64

kernel_release

uname -r → 3.10.0-962.3.2.lve1.5.89.el7.x86_64

kernel_version

uname -v → #1 SMP Thu Jul 9 15:55:31 UTC 2026

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	9.8	2026-10-20T10:18:22Z	Open

Description

MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.

Update status

Add note only

References

NVD: CVE-2023-45853