CVE-2013-4470
What it is
The Linux kernel before 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly initialize certain data structures, which allows local users to cause a denial of service (memory corruption and system crash) or possibly gain privileges via a crafted application that uses the UDP_CORK option in a setsockopt system call and sends both short and long packets, related to the ip_ufo_append_data function in net/ipv4/ip_output.c and the ip6_ufo_append_data function in net/ipv6/ip6_output.c.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.6% in the next 30 days (EPSS).
- Severity: 6.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.6% · EPSS, next 30 days
- Weakness
- CWE-264
- Record status
- Modified
Affected
- Linux Kernel ≤ 3.11.7
- Linux Kernel 3.0
- Linux Kernel 3.0.1
- Linux Kernel 3.0.2
- Linux Kernel 3.0.3
- Linux Kernel 3.0.4
- Linux Kernel 3.0.5
- Linux Kernel 3.0.6
Attack profile CVSS 2.0 · 6.9
- Attack vector
- Local
- Complexity
- Medium
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
Raw vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2013-4470.md and follow it. Check whether this project is affected by CVE-2013-4470. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.openwall.com/lists/oss-security/2013/10/25/5
- https://bugzilla.redhat.com/show_bug.cgi?id=1023477
- https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
- https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2
- http://www.openwall.com/lists/oss-security/2013/10/25/5
- https://bugzilla.redhat.com/show_bug.cgi?id=1023477
- https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
- https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e93b7d748be887cd7639b113ba7d7ef792a7efb9
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html
- http://rhn.redhat.com/errata/RHSA-2013-1801.html
- http://rhn.redhat.com/errata/RHSA-2014-0100.html
- http://rhn.redhat.com/errata/RHSA-2014-0284.html
- http://www.openwall.com/lists/oss-security/2013/10/25/5
- http://www.securityfocus.com/bid/63359
- http://www.ubuntu.com/usn/USN-2040-1
- http://www.ubuntu.com/usn/USN-2042-1
- http://www.ubuntu.com/usn/USN-2043-1
- http://www.ubuntu.com/usn/USN-2044-1
- http://www.ubuntu.com/usn/USN-2046-1
- http://www.ubuntu.com/usn/USN-2049-1
- http://www.ubuntu.com/usn/USN-2050-1
- http://www.ubuntu.com/usn/USN-2066-1
- http://www.ubuntu.com/usn/USN-2067-1
- http://www.ubuntu.com/usn/USN-2069-1
- http://www.ubuntu.com/usn/USN-2073-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1023477
- https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
- https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e93b7d748be887cd7639b113ba7d7ef792a7efb9