What is the CVSS score of CVE-2020-35861?

CVE-2020-35861 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.5%.

Is there a public PoC exploit available for CVE-2020-35861?

Yes, a public proof-of-concept exploit is available for CVE-2020-35861. Prioritise patching immediately. EPSS: 1.5%.

Is there a patch available for CVE-2020-35861?

Yes, a patch is available for CVE-2020-35861. Update the affected software to the latest version immediately.

Bumpalo CVE-2020-35861

HIGH

Out-of-bounds Read (CWE-125)

2020-12-31 cve@mitre.org

Buffer Overflow Information Disclosure Bumpalo

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Dec 31, 2020 - 10:15 nvd

HIGH 7.5

DescriptionNVD

An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.

AnalysisAI

An issue was discovered in the bumpalo crate before 3.2.1 for Rust. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys. Affected products include: Bumpalo Project Bumpalo. Version information: before 3.2.1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.