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)
|
|
| 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 |