UBUNTU-CVE-2019-12495

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Source
https://ubuntu.com/security/CVE-2019-12495
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12495.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-12495
Upstream
Published
2019-05-31T11:29:00Z
Modified
2026-04-22T12:08:54.757805Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

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 gsymaddr function in x8664-gen.c. This occurs because tccasm.c mishandles section switches.

References

Affected packages

Ubuntu:16.04:LTS / tcc

Package

Name
tcc
Purl
pkg:deb/ubuntu/tcc@0.9.27~git20151227.933c223-1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.9.27~git20140923.9d7fb33-3ubuntu1
0.9.27~git20151227.933c223-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tcc",
            "binary_version": "0.9.27~git20151227.933c223-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12495.json"

Ubuntu:18.04:LTS / tcc

Package

Name
tcc
Purl
pkg:deb/ubuntu/tcc@0.9.27-5?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.9.27~git20161217.cd9514ab-3ubuntu1
0.9.27-2
0.9.27-4
0.9.27-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tcc",
            "binary_version": "0.9.27-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12495.json"

Ubuntu:20.04:LTS / tcc

Package

Name
tcc
Purl
pkg:deb/ubuntu/tcc@0.9.27-8?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.9.27-8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tcc",
            "binary_version": "0.9.27-8"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12495.json"