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Fedora 42: Critical Fix for Heap Buffer Overflow in mingw-binutils

fedora
Calendar Grey July 27, 2025
Dist Fedora Esm H88
Implement patches to address severe security flaws in mingw-binutils for Fedora 42, improving overall system safety.
Backport fixes for CVE-2025-7545 and CVE-2025-7546.

Summary

Cross compiled binutils (utilities like 'strip', 'as', 'ld') which

understand Windows executables and DLLs.

Update Information:

Backport fixes for CVE-2025-7545 and CVE-2025-7546.

Topics%20covered

Topics Covered

security advisory fedora buffer overflow critical out-of-bounds write mingw-binutils

Change Log

* Fri Jul 18 2025 Sandro Mani - 2.43.1-4 - Backport fixes for CVE-2025-7545 and CVE-2025-7546

References


[ 1 ] Bug #2379831 - CVE-2025-7545 mingw-binutils: Binutils: Heap Buffer Overflow [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2379831 [ 2 ] Bug #2379838 - CVE-2025-7546 mingw-binutils: Binutils: Out-of-bounds Write Vulnerability [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2379838 [ 3 ] Bug #2379839 - CVE-2025-7545 mingw-binutils: Binutils: Heap Buffer Overflow [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2379839 [ 4 ] Bug #2379845 - CVE-2025-7546 mingw-binutils: Binutils: Out-of-bounds Write Vulnerability [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2379845

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-a39532f9e1' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
critical
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Critical

Name: mingw-binutils
Product: Fedora 42
Version: 2.43.1
Release: 4.fc42
URL: http://www.gnu.org/software/binutils/
Summary: Cross-compiled version of binutils for Win32 and Win64 environments

Topics%20covered

Topics Covered

security advisory fedora buffer overflow critical out-of-bounds write mingw-binutils

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