OESA-2026-2033 glibc security update

The GNU C Library project provides the core libraries for the GNU system and GNU/Linux systems, as well as many other systems that use Linux as the kernel. These libraries provide critical APIs including ISO C11, POSIX.1-2008, BSD, OS-specific APIs and more. These APIs include such foundational...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: glibc (UTSA-2026-014283)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014283 advisory. The iconv function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character...

OESA-2026-1927 musl security update

musl is an implementation of the C standard library built on top of the Linux system call API, including interfaces defined in the base language standard, POSIX, and widely agreed-upon extensions. It is lightweight, fast, simple, free, and strives to be correct in the sense of standards conforman...

Exploit for CVE-2026-6042

CVE-2026-6042: Algorithmic Complexity DoS in musl libc iconv...

CVE-2026-6042

A flaw was found in musl libc, specifically within the iconv function of the GB18030 4-byte Decoder component. A local attacker can exploit this vulnerability by performing a specific manipulation, leading to inefficient algorithmic complexity. This can result in a Denial of Service DoS due to...

EUVD-2026-21354

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

CVE-2026-6042

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

DEBIAN-CVE-2026-6042

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

ALPINE-CVE-2026-6042

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

UBUNTU-CVE-2026-6042

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

CVE-2026-6042 musl libc GB18030 4-byte Decoder iconv.c iconv algorithmic complexity

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

CVE-2026-6042

The CVE-2026-6042 issue affects musl libc up to 1.2.6, specifically the GB18030 4-byte Decoder’s iconv implementation (src/locale/iconv.c). A manipulation can cause inefficient algorithmic complexity, requiring a local attacker to trigger. The description mentions deploying a patch as the fix. No...

CVE-2026-6042

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

CVE-2026-6042

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

CVE-2026-6042

A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix...

PT-2026-31904

Name of the Vulnerable Software and Affected Versions musl libc versions up to 1.2.6 Description A security flaw exists in the iconv function within the GB18030 4-byte Decoder component of musl libc, specifically in the file src/locale/iconv.c. A manipulation of this function leads to inefficient...

iconv crash due to assertion failure with untrusted input

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Linux Distros Unpatched Vulnerability : CVE-2026-4046

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The iconv function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399...

CVE-2026-4046

A flaw was found in glibc, the GNU C Library. A remote attacker could exploit this vulnerability by providing specially crafted inputs using the IBM1390 or IBM1399 character sets to the iconv function. This could lead to an assertion failure, causing the application to crash and resulting in a...

EUVD-2026-17144

The iconv function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application. This vulnerability can be trivially mitigated by removing the IBM1390 and...