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CVE-2020-35877

Out of bounds read in Ozone

9.8 Critical

An issue was discovered in the ozone crate through 2020-07-04 for Rust. Memory safety is violated because of out-of-bounds access.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.53%Up 1.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

An issue was discovered in the ozone crate through 2020-07-04 for Rust. Memory safety is violated because of out-of-bounds access.

Record
CVE-2020-35877
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

An issue was discovered in the ozone crate through 2020-07-04 for Rust. Memory safety is violated because of out-of-bounds access.

Record
CVE-2020-35877
Updated
2026-11-02
EUVDEUVD-2021-1811 No score

An issue was discovered in the ozone crate through 2020-07-04 for Rust. Memory safety is violated because of out-of-bounds access.

Record
EUVD-2021-1811
Updated
2026-11-03
GitHub AdvisoriesGHSA-p2q9-9cq6-h3jw 9.8

Out of bounds read in Ozone

An issue was discovered in the ozone crate through version 0.1.0 for Rust. Memory safety is violated because of out-of-bounds access.

Record
GHSA-p2q9-9cq6-h3jw
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-119
Updated
2026-11-02
OSVGHSA-m3ww-7hrp-gw9w 9.8

Drop of uninitialized memory in Ozone

An issue was discovered in the ozone crate through version 0.1.0 for Rust. Memory safety is violated because of the dropping of uninitialized memory.

Record
GHSA-m3ww-7hrp-gw9w
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-119, CWE-908
Updated
2026-11-02
OSVGHSA-p2q9-9cq6-h3jw 9.8

Out of bounds read in Ozone

An issue was discovered in the ozone crate through version 0.1.0 for Rust. Memory safety is violated because of out-of-bounds access.

Record
GHSA-p2q9-9cq6-h3jw
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-119
Updated
2026-11-02
OSVRUSTSEC-2020-0022 9.8

Ozone contains several memory safety issues

Ozone contains several memory safety issues including out-of-bound access and dropping of uninitialized memory.

Record
RUSTSEC-2020-0022
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ozone
crates.io
through 0.1.0 None known
ozone
crates.io
From an advisory covering 2 CVEs
through 0.1.0 None known
ozone
crates.io
From an advisory covering 2 CVEs
0.0.0-0 and later None known

History

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

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

In short

CVE-2020-35877 is a critical vulnerability (CVSS 9.8) in Ozone Project Ozone, published July 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.53%, the 74th percentile. No source names a fixed version.

References

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