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. This could crash the process when processing untrusted data.
CVSS Details
- CVSS 4.0 Base Score: 8.2 (HIGH)
- CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade python3 | Aug 17, 2026 | Jun 8, 2026 |
| Amazon_linux_2023 | — | Upgrade python3.14-develUpgrade python3.14-freethreading-libsUpgrade python3.11-testUpgrade python3-libsUpgrade python3.14-freethreading-debugUpgrade python3.9-debugsourceUpgrade python3.11-libsUpgrade python3.14-freethreading-testUpgrade python3.14-testUpgrade python3-idleUpgrade python3.14-freethreading-develUpgrade python3Upgrade python-unversioned-commandUpgrade python3.11-tkinterUpgrade python3.14-idleUpgrade python3.11-debugUpgrade python3.11Upgrade python3.14-freethreadingUpgrade python3.9-debuginfoUpgrade python3.14Upgrade python3-testUpgrade python3.14-freethreading-tkinterUpgrade python3.11-idleUpgrade python3.14-tkinterUpgrade python3.11-develUpgrade python3.14-freethreading-idleUpgrade python3-develUpgrade python3-debugUpgrade python3-tkinterUpgrade python3.14-debuginfoUpgrade python3.11-debugsourceUpgrade python3.14-debugUpgrade python3.11-debuginfoUpgrade python3.14-debugsourceUpgrade python3.14-libs | Jul 21, 2026 | Jun 8, 2026 |
| Debian | — | Upgrade python3.13 | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jun 8, 2026 |
| Ubuntu | — | Upgrade python3.12Upgrade libpython3.14Upgrade libpython3.12t64Upgrade python3.10Upgrade libpython3.10Upgrade python3.14 | Jul 6, 2026 | Jun 8, 2026 |
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