What is the CVSS score of CVE-2019-11050?

CVE-2019-11050 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L. EPSS exploitation probability: 7.6%.

Is there a public PoC exploit available for CVE-2019-11050?

Yes, a public proof-of-concept exploit is available for CVE-2019-11050. Prioritise patching immediately. EPSS: 7.6%.

PHP CVE-2019-11050

MEDIUM

Out-of-bounds Read (CWE-125)

2019-12-23 security@php.net

PHP Buffer Overflow Information Disclosure Ubuntu Linux Debian Linux Fedora Securitycenter Leap

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

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:L/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Lifecycle Timeline

CVE Published

Dec 23, 2019 - 03:15 nvd

MEDIUM 6.5

DescriptionNVD

When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.

AnalysisAI

When PHP EXIF extension is parsing EXIF information from an image, e.g. Rated medium severity (CVSS 6.5), 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. When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash. Affected products include: Php, Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Tenable Securitycenter.

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.