# CVE-2015-3886: Security feature bypass in n/a

> libinfinity fails to validate expired SSL certificates, allowing remote attackers to bypass security checks via unknown vectors.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 21 Jul 2017
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2015-3886, GHSA-fjjv-xp9p-25r7

## What is CVE-2015-3886?

CVE-2015-3886 is a critical vulnerability in n/a, published on 21 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

libinfinity before 0.6.6-1 does not validate expired SSL certificates, which allows remote attackers to have unspecified impact via unknown vectors.

Weakness: CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2015-3886?

It affects 1 product.


Products: Libinfinity Project Libinfinity.

## How do I fix CVE-2015-3886?

Upgrade to a fixed version.

## Is CVE-2015-3886 being exploited?

There is no known exploitation of CVE-2015-3886 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-3886 and fix it if it is affected.

What it is: CVE-2015-3886 is a critical vulnerability in n/a, published on 21 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2015-3886 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2015-3886/ (Markdown: https://insights.sbomify.com/CVE-2015-3886/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-3886
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-3886
- OSV: https://osv.dev/vulnerability/CVE-2015-3886

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From sbomify Insights: https://insights.sbomify.com/CVE-2015-3886/
Summaries are generated and may contain mistakes; the official description above is the record.