CVE-2019-12495 - Vulnerability Details - OpenCVE

Description

An issue was discovered in Tiny C Compiler (aka TinyCC or TCC) 0.9.27. Compiling a crafted source file leads to a one-byte out-of-bounds write in the gsym_addr function in x86_64-gen.c. This occurs because tccasm.c mishandles section switches.

Published: 2019-05-31

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:tinycc:tinycc:0.9.27:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2019-4091	An issue was discovered in Tiny C Compiler (aka TinyCC or TCC) 0.9.27. Compiling a crafted source file leads to a one-byte out-of-bounds write in the gsym_addr function in x86_64-gen.c. This occurs because tccasm.c mishandles section switches.

No CVSS v4.0

No CVSS v3.1

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00186.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://www.securityfocus.com/bid/108541
https://lists.nongnu.org/archive/html/tinycc-devel/2019-05/msg00044.html
https://repo.or.cz/tinycc.git/commit/d04ce7772c2bc2781ab2502e0b1f1964488814b5

History

No history.

Subscriptions

Tinycc Tinycc

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-05-31T10:45:28.000Z

Updated: 2024-08-04T23:24:38.393Z

Reserved: 2019-05-31T00:00:00.000Z

Link: CVE-2019-12495

Vulnrichment

No data.

NVD

Status : Modified

Published: 2019-05-31T11:29:02.623

Modified: 2024-11-21T04:22:58.223

Link: CVE-2019-12495

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-787

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