CVE-2021-45685 — Vulnerability in columnar — CVE Details
CRITICAL
columnar: Read on uninitialized buffer may cause UB (ColumnarReadExt::read_typed_vec())
Published January 6, 2022Updated November 8, 2023Source: osv
Summary
Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation (ColumnarReadExt::read_typed_vec()).
Arbitrary Read implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.
Advisory Timeline
- First published January 6, 2022 (1740 days ago).
- Last revised November 8, 2023 — 670 days after initial publication.
Affected Packages (1)
Affects 1 ecosystem: crates.io (1).
| Package | Ecosystem | Affected | Fixed In |
|---|---|---|---|
| columnar | crates.io | All versions | Range-based data available |
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-908
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-45685ADVISORY
- https://github.com/frankmcsherry/columnar/issues/6WEB
- https://github.com/frankmcsherry/columnar.gitPACKAGE
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/columnar/RUSTSEC-2021-0087.mdWEB
- https://rustsec.org/advisories/RUSTSEC-2021-0087.htmlWEB
Frequently Asked Questions
- What is CVE-2021-45685?
- columnar: Read on uninitialized buffer may cause UB (ColumnarReadExt::read_typed_vec()) This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
- How do I check if my project is affected by CVE-2021-45685?
- CVE-2021-45685 affects columnar. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-45685 and 200,000+ other known vulnerabilities.
Severity & Exploitability
CVSS Score
9.8
Exploitation is straightforward and causes maximum impact. Patch immediately.
Also Known As
GHSA-9mp7-45qh-r8j8
GHSA-cxcc-q839-2cw9
RUSTSEC-2021-0087
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