CVE Vulnerability

CVE-2019-12495

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://repo.or.cz/tinycc.git/commit/d04ce7772c2bc2781ab2502e0b1f1964488814b5 Patch Third Party Advisory
https://lists.nongnu.org/archive/html/tinycc-devel/2019-05/msg00044.html Exploit Third Party Advisory
http://www.securityfocus.com/bid/108541
Configurations

Configuration 1

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

Published : 2019-05-31 11:29

Updated : 2019-06-03 11:29

NVD link : CVE-2019-12495

Mitre link : CVE-2019-12495

Products Affected
No products.
CWE
CWE-787