What is the CVSS score of CVE-2020-7059?

CVE-2020-7059 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H. EPSS exploitation probability: 7.1%.

Is there a public PoC exploit available for CVE-2020-7059?

Yes, a public proof-of-concept exploit is available for CVE-2020-7059. Prioritise patching immediately. EPSS: 7.1%.

Is there a patch available for CVE-2020-7059?

Yes, a patch is available for CVE-2020-7059. Update the affected software to the latest version immediately.

PHP CVE-2020-7059

CRITICAL

Out-of-bounds Read (CWE-125)

2020-02-10 security@php.net

Buffer Overflow PHP Information Disclosure Tenable Sc Communications Diameter Signaling Router Leap Debian Linux

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

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

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:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Feb 10, 2020 - 08:15 nvd

CRITICAL 9.1

DescriptionNVD

When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read past the allocated buffer. This may lead to information disclosure or crash.

AnalysisAI

When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code 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. When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read past the allocated buffer. This may lead to information disclosure or crash. Affected products include: Php, Tenable Tenable.Sc, Oracle Communications Diameter Signaling Router, Opensuse Leap, Debian Debian Linux.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.