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CVE-2019-9754

Published: 13 March 2019

An issue was discovered in Tiny C Compiler (aka TinyCC or TCC) 0.9.27. Compiling a crafted source file leads to an 1 byte out of bounds write in the end_macro function in tccpp.c.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
tcc
Launchpad, Ubuntu, Debian
impish Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
groovy Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
xenial Needed

jammy Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needed

hirsute Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
kinetic Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
lunar Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
trusty Does not exist
(trusty was needs-triage)
upstream Needs triage

mantic Not vulnerable
(0.9.27+git20200814.62c30a4a-1)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H