AlmaLinux 9.6 [TuxCare] Security Update: python-unversioned-command / python3 / python3-debug / etc (ALMALINUX9.6:CLSA-2026:1778831359)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1778831359 advisory. - Use-after-free UAF was possible in the lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile when a memory allocation fails with a...

python: Fix of CVE-2026-9669

CVE-2026-9669: fix a stack buffer overflow in the bz2 module when a BZ2Decompressor object is reused after a decompression error; the decompressor now becomes unusable once libbz2 reports an error, instead of resuming from an invalid internal state...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python3 (UTSA-2026-109814)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-109814 advisory. bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, craft...

EulerOS 2.0 SP15 : python3 (EulerOS-SA-2026-3819)

According to the versions of the python3 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same...

python: Python: Denial of Service via out-of-bounds write in BZ2 decompression

A flaw was found in Python's bz2.BZ2Decompressor component. An attacker could provide specially crafted input that, when processed by an application reusing a decompressor object after an error, could lead to out-of-bounds writes in memory. This memory corruption could cause the application to...

python: Python: Denial of Service via out-of-bounds write in BZ2 decompression

A flaw was found in Python's bz2.BZ2Decompressor component. An attacker could provide specially crafted input that, when processed by an application reusing a decompressor object after an error, could lead to out-of-bounds writes in memory. This memory corruption could cause the application to...

python: Python: Denial of Service via out-of-bounds write in BZ2 decompression

A flaw was found in Python's bz2.BZ2Decompressor component. An attacker could provide specially crafted input that, when processed by an application reusing a decompressor object after an error, could lead to out-of-bounds writes in memory. This memory corruption could cause the application to...

python: Python: Denial of Service via out-of-bounds write in BZ2 decompression

A flaw was found in Python's bz2.BZ2Decompressor component. An attacker could provide specially crafted input that, when processed by an application reusing a decompressor object after an error, could lead to out-of-bounds writes in memory. This memory corruption could cause the application to...

python: Python: Denial of Service via out-of-bounds write in BZ2 decompression

A flaw was found in Python's bz2.BZ2Decompressor component. An attacker could provide specially crafted input that, when processed by an application reusing a decompressor object after an error, could lead to out-of-bounds writes in memory. This memory corruption could cause the application to...

Important: python3.9

Issue Overview: When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters \r the resulting file could be injected with unexpected keys and values if the attacker controls the written value. CVE-2026-0864 tarfile.extractall...

bz2.BZ2Decompressor reuse after error can cause a stack buffer overflow

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AZL-90159 CVE-2026-9669 affecting package python3 for versions less than 3.12.9-14

bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer...

CVE-2026-9669: Stack-based Buffer Overflow

bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer...

CLSA-2026-1778831359 python3.9: Fix of CVE-2026-6100

CVE-2026-6100: fix possible use-after-free in bz2.BZ2Decompressor and lzma.LZMADecompressor by clearing dangling nextin input pointer on the MemoryError error path...

CVE-2026-6100: Use After Free

Use-after-free UAF was possible in the lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile when a memory allocation fails with a MemoryError and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling...