Vulnerability DatabaseCVE-2020-29367
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CVE-2020-29367
Published:November 27, 2020
Updated:May 17, 2026
blosc2.c in Blosc C-Blosc2 through 2.0.0.beta.5 has a heap-based buffer overflow when there is a lack of space to write compressed data.
Affected Packages
blosc2 (PYTHON):
Affected version(s) >=0.1.1 <0.1.7
Fix Suggestion:
Update to version 0.1.7
Related Resources (6)
https://github.com/pypa/advisory-database/tree/main/vulns/blosc2/PYSEC-2020-343.yaml
https://nvd.nist.gov/vuln/detail/CVE-2020-29367
https://github.com/Blosc/python-blosc2
https://github.com/Blosc/c-blosc2/commit/c4c6470e88210afc95262c8b9fcc27e30ca043ee
https://github.com/Blosc/python-blosc2/releases/tag/v0.1.7
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26442
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CVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Write
CWE-787
EPSS
Base Score:
0.13