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CVE-2020-35900

use-after-free vulnerability in Rust array-queue

5.5 Medium

An issue was discovered in the array-queue crate through 2020-09-26 for Rust. A pop_back() call may lead to a use-after-free.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

0.43%Unchanged since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.5

An issue was discovered in the array-queue crate through 2020-09-26 for Rust. A pop_back() call may lead to a use-after-free.

Record
CVE-2020-35900
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
2.1 LowAV:L/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-416
Updated
2026-11-02
CVE List No score

An issue was discovered in the array-queue crate through 2020-09-26 for Rust. A pop_back() call may lead to a use-after-free.

Record
CVE-2020-35900
Updated
2026-11-02
EUVDEUVD-2021-1609 No score

An issue was discovered in the array-queue crate through 2020-09-26 for Rust. A pop_back() call may lead to a use-after-free.

Record
EUVD-2021-1609
Updated
2026-11-03
GitHub AdvisoriesGHSA-75cq-g75g-rxff 5.5

use-after-free vulnerability in Rust array-queue

An issue was discovered in the array-queue crate through 2020-09-26 for Rust. A pop_back() call may lead to a use-after-free.

Record
GHSA-75cq-g75g-rxff
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-416
Updated
2026-11-02
OSVGHSA-75cq-g75g-rxff 5.5

use-after-free vulnerability in Rust array-queue

An issue was discovered in the array-queue crate through 2020-09-26 for Rust. A pop_back() call may lead to a use-after-free.

Record
GHSA-75cq-g75g-rxff
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-416
Updated
2026-11-02
OSVRUSTSEC-2020-0047 5.5

array_queue pop_back() may cause a use-after-free

array_queue implements a circular queue that wraps around an array. However, it fails to properly index into the array in the pop_back function allowing the reading of previously dropped or uninitialized memory.

Record
RUSTSEC-2020-0047
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
array-queue
crates.io
0.3.0 to 0.3.3 None known
array-queue
crates.io
0.3.0 and later None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-35900 is a medium vulnerability (CVSS 5.5) in Array-queue Project Array-queue, published September 26, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. No source names a fixed version.

References

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