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CVE Vulnerabilities

CVE-2020-36318

Double Free

Published: Apr 11, 2021 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
9.8 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-36318
CWEhttps://cwe.mitre.org/data/definitions/415.html

In the standard library in Rust before 1.49.0, VecDeque::make_contiguous has a bug that pops the same element more than once under certain condition. This bug could result in a use-after-free or double free.

Weakness

The product calls free() twice on the same memory address.

Affected Software

NameVendorStart VersionEnd Version
RustRust-lang1.48.0 (including)1.49.0 (excluding)
Red Hat Developer ToolsRedHatrust-toolset-1.49-0:1.49.0-1.el7_9*
Red Hat Developer ToolsRedHatrust-toolset-1.49-rust-0:1.49.0-1.el7_9*
Red Hat Enterprise Linux 8RedHatrust-toolset:rhel8-8040020210113215649.bd734dca*
RustcUbuntuesm-apps/xenial*
RustcUbuntuesm-infra-legacy/trusty*
RustcUbuntugroovy*
RustcUbuntuhirsute*
RustcUbuntutrusty*
RustcUbuntutrusty/esm*
RustcUbuntuupstream*
RustcUbuntuxenial*

Potential Mitigations

References

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