False positive: GHSA-v973-fxgf-6xhp (CVE-2022-40023) python3-Mako in SLES 15.5 Ecosystem

[sekveaja]

What happened:

Scan on image that has python3-Mako-1.0.7-150000.3.3.1.noarch installed.
It generates high vulnerability:

NAME INSTALLED FIXED-IN TYPE VULNERABILITY SEVERITY
Mako 1.0.7 1.2.2 python GHSA-v973-fxgf-6xhp High

"vulnerability": {
"id": "GHSA-v973-fxgf-6xhp",
"dataSource": "GHSA-v973-fxgf-6xhp",
"namespace": "github:language:python",
"severity": "High",
"urls": [
"https://github.com/advisories/GHSA-v973-fxgf-6xhp"
],
"description": "mako is vulnerable to Regular Expression Denial of Service",
:
"relatedVulnerabilities": [
{
"id": "CVE-2022-40023",
"dataSource": "https://nvd.nist.gov/vuln/detail/CVE-2022-40023",
"namespace": "nvd:cpe",
"severity": "High",
"urls": [
:
:
"artifact": {
"id": "5ecd5f4b31668b60",
"name": "Mako",
"version": "1.0.7",
"type": "python",
"locations": [
{
"path": "/usr/lib/python3.6/site-packages/Mako-1.0.7-py3.6.egg-info/PKG-INFO",
"layerID": "sha256:4bfdb8762be5511b925a34075857d0a0ba0849de7f77ab71b52e15e482cc2b86"
},

What you expected to happen:

According to SUSE Advisory CVE-2022-40023
Patch for this CVE is applied from version python3-Mako >= 1.0.7-150000.3.3.1

See with this link: https://www.suse.com/security/cve/CVE-2022-40023.html

SUSE Linux Enterprise Server 15 SP5
python3-Mako >= 1.0.7-150000.3.3.1
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 SP5 GA python-Mako-1.0.7-150000.3.3.1
SUSE Linux Enterprise Module for Basesystem 15 SP5 GA python3-Mako-1.0.7-150000.3.3.1

Installed version in the container: python3-Mako-1.0.7-150000.3.3.1.noarch

rpm -qf /usr/lib/python3.6/site-packages/Mako-1.0.7-py3.6.egg-info/PKG-INFO

python3-Mako-1.0.7-150000.3.3.1.noarch

Conclusion: Installed version meet the minimal requirement patch from SLES 15.5 but Grype generate a vulnerability.

How to reproduce it (as minimally and precisely as possible):

1)Create the Dockerfile with this content:

FROM registry.suse.com/suse/sle15:15.5
RUN zypper in -y --no-recommends python3-Mako=1.0.7-150000.3.3.1
ENTRYPOINT [""]
CMD ["bash"]

2. Build an image from Dockerfile

$ docker build -t "suse15.5_python3-mako:v1" .

3. Test with Grype now

$ grype --distro sles:15.5 suse15.5_python3-mako:v1

NAME INSTALLED FIXED-IN TYPE VULNERABILITY SEVERITY
Mako 1.0.7 1.2.2 python GHSA-v973-fxgf-6xhp High

Environment:
$ grype --version
grype 0.78.0

In container image eco-system:
bash-4.4$ cat /etc/release
NAME="SLES"
VERSION="15-SP5"
VERSION_ID="15.5"
PRETTY_NAME="SUSE Linux Enterprise Server 15 SP5"
ID="sles"
ID_LIKE="suse"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:suse:sles:15:sp5"
DOCUMENTATION_URL="https://documentation.suse.com/"