What is the CVSS score of CVE-2018-15157?

CVE-2018-15157 has a CVSS 3.0 base score of 6.5 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 1.5%.

Is there a public PoC exploit available for CVE-2018-15157?

Yes, a public proof-of-concept exploit is available for CVE-2018-15157. Prioritise patching immediately. EPSS: 1.5%.

Libfsclfs CVE-2018-15157

MEDIUM

Out-of-bounds Read (CWE-125)

2018-09-01 cve@mitre.org

Information Disclosure Buffer Overflow Libfsclfs

6.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Sep 01, 2018 - 03:29 nvd

MEDIUM 6.5

DescriptionNVD

AnalysisAI

The libfsclfs_block_read function in libfsclfs_block.c in libfsclfs before 2018-07-25 allows remote attackers to cause a heap-based buffer over-read via a crafted clfs file. 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. The libfsclfs_block_read function in libfsclfs_block.c in libfsclfs before 2018-07-25 allows remote attackers to cause a heap-based buffer over-read via a crafted clfs file. NOTE: the vendor has disputed this as described in the GitHub issue comments Affected products include: Libfsclfs Project Libfsclfs. Version information: before 2018.

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.