Ubuntu 24.04 LTS / 26.04 LTS : zlib vulnerability (USN-8706-1)

The remote Ubuntu 24.04 LTS / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8706-1 advisory. It was discovered that zlib incorrectly handled negative length parameters in CRC32 combine functions. An attacker could use this issue to cause a...

Security Bulletin: IBM i is Affected by an Improper Validation Vulnerability in zlib [CVE-2026-27171]

Summary Zlib for IBM i is vulnerable to increased CPU consumption when using functions crc32combine64 and crc32combine64gen64 CVE-2026-27171 as described in the vulnerability details section. Vulnerability Details CVEID:CVE-2026-27171 DESCRIPTION: zlib before 1.3.2 allows CPU consumption via...

USN-8706-1 zlib vulnerability

It was discovered that zlib incorrectly handled negative length parameters in CRC32 combine functions. An attacker could use this issue to cause a denial of service via excessive CPU consumption...

USN-8706-1: zlib vulnerability

It was discovered that zlib incorrectly handled negative length parameters in CRC32 combine functions. An attacker could use this issue to cause a denial of service via excessive CPU consumption...

Astra Linux – Vulnerability in zlib

Zlib before version 1.3.2 allowed CPU consumption through crc32combine64 and crc32combinegen64, because x2nmodp could perform right shifts within a loop without a termination condition...

EulerOS Virtualization 2.12.0 : zlib (EulerOS-SA-2026-2117)

According to the versions of the zlib package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop th...

zlib crc32_combine64 Heap Buffer Overflow DoS

The vulnerability of the crc32combine64 and crc32combinegen64 functions in the open-source data compression library zlib relates to the fact that the x2nmodp function may perform right shifts within a loop without a termination condition. Exploiting this vulnerability could allow an attacker to...

JLSEC-2026-480 zlib before 1.3.2 allows CPU consumption via `crc32_combine64` and `crc32_combine_gen64` because...

zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop that has no termination condition...

Low: nodejs20

Issue Overview: A flaw was found in zlib. An attacker providing specially crafted input to the crc32combine64 or crc32combinegen64 functions could trigger an infinite loop within the x2nmodp function. This leads to excessive CPU consumption, which can result in a Denial of Service DoS for the...

Low: nodejs22

Issue Overview: A flaw was found in zlib. An attacker providing specially crafted input to the crc32combine64 or crc32combinegen64 functions could trigger an infinite loop within the x2nmodp function. This leads to excessive CPU consumption, which can result in a Denial of Service DoS for the...

Amazon Linux 2023 : nodejs20, nodejs20-devel, nodejs20-full-i18n (ALAS2023-2026-1608)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1608 advisory. A flaw was found in zlib. An attacker providing specially crafted input to the crc32combine64 or crc32combinegen64 functions could trigger an infinite loop within the x2nmodp function. This leads to...

SUSE-SU-2026:21013-1 Security update for zlib

This update for zlib fixes the following issues: - CVE-2026-27171: Fixed an infinite loop via the crc32combine64 and crc32combinegen64 functions due to missing checks for negative lengths. bsc1258392 - CVE-2023-45853: Fixed an integer overflow and resultant heap-based buffer overflow in...

Updated zlib packages fix security vulnerability

zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop that has no termination condition. CVE-2026-27171...

Advisory ROSA-SA-2026-3250

software: zlib 1.2.13 OS: ROSA-CHROME unaffected versions = zlib-1.2.13-2 affected versions zlib-1.2.13-2 CVE-ID: CVE-2026-27171 BDU-ID: None CVE-Crit: LOW CVE-DESC.: In zlib before 1.3.2, excessive CPU consumption DoS via crc32combine64 and crc32combinegen64 functions is possible: the x2nmodp...

OESA-2026-1583 zlib security update

Security Fixes: zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop that has no termination condition.CVE-2026-27171...

OESA-2026-1585 zlib security update

Security Fixes: zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop that has no termination condition.CVE-2026-27171...

OESA-2026-1586 zlib security update

Security Fixes: zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop that has no termination condition.CVE-2026-27171...

SUSE-SU-2026:20659-1 Security update for zlib

This update for zlib fixes the following issues: - CVE-2026-27171: Fixed an infinite loop via the crc32combine64 and crc32combinegen64 functions due to missing checks for negative lengths. bsc1258392 - CVE-2023-45853: Fixed an integer overflow and resultant heap-based buffer overflow in...

SUSE-SU-2026:20709-1 Security update for zlib

This update for zlib fixes the following issues: - CVE-2026-27171: Fixed an infinite loop via the crc32combine64 and crc32combinegen64 functions due to missing checks for negative lengths. bsc1258392 - CVE-2023-45853: Fixed an integer overflow and resultant heap-based buffer overflow in...

SUSE SLED15: libminizip1 / libminizip1-32bit / libz1 / libz1-32bit / etc (SUSE-SU-2026:0783-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0783-1 advisory. This update for zlib fixes the following issue: - CVE-2026-27171: Fixed infinite loop via the...