CVE-2019-12495
Published: 31 May 2019
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.
Priority
Status
Package | Release | Status |
---|---|---|
tcc Launchpad, Ubuntu, Debian |
bionic |
Needed
|
cosmic |
Ignored
(end of life)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Needed
|
|
groovy |
Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
|
|
hirsute |
Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
|
|
impish |
Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
|
|
jammy |
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)
|
|
mantic |
Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
|
|
noble |
Not vulnerable
(0.9.27+git20200814.62c30a4a-1)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Needed
|
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 |