Category Archives: Advisories

glibc-2.39-37.fc40

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FEDORA-2025-69207650a4

Packages in this update:

glibc-2.39-37.fc40

Update description:

This update addresses two security vulnerabilities:
* CVE-2025-0395: A buffer overflow may occur in the assert function with certain large program names and assert expressions.
* CVE-2025-0577: getrandom, arc4random can produce predictable randomness if a multi-threaded program creates additional threads after fork.
The following non-security bugs are fixed:
* Compatibility with certain programs that call free(environ) is improved (however, deallocating environ remains undefined in general).
* Crashes in string functions on certain hypervisors that report L3 cache sizes above 4 GiB are avoided.
* Poor performance of x86-64 string functions in certain cases.
* Initialization of the restartable sequence area now follows recommended practices.

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glibc-2.40-21.fc41

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FEDORA-2025-497995b101

Packages in this update:

glibc-2.40-21.fc41

Update description:

This update addresses two security vulnerabilities:
* CVE-2025-0395: A buffer overflow may occur in the assert function with certain large program names and assert expressions.
* CVE-2025-0577: getrandom, arc4random can produce predictable randomness if a multi-threaded program creates additional threads after fork.
The following non-security bugs are fixed:
* Compatibility with certain programs that call free(environ) is improved (however, deallocating environ remains undefined in general).
* On certain non-Fedora kernels, mkstemp and other functions may not attempt to create multiple different file names and fail with EEXISTS.

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