CVE-2017-13715
Description
The __skb_flow_dissect function in net/core/flow_dissector.c in the Linux kernel before 4.3 does not ensure that n_proto, ip_proto, and thoff are initialized, which allows remote attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a single crafted MPLS packet.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-13715
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2017-13715.html
Vendor advisory: cve@mitre.org — https://github.com/torvalds/linux/commit/a6e544b0a88b53114bfa5a57e21b7be7a8dfc9d0
Vendor advisory: cve@mitre.org — http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6e544b0a88b53114bfa5a57e21b7be7a8dfc9d0
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.3.1-1 |
| debian | bullseye | fixed | 4.3.1-1 |
| debian | forky | fixed | 4.3.1-1 |
| debian | sid | fixed | 4.3.1-1 |
| debian | trixie | fixed | 4.3.1-1 |
| linux-kernel | affected | 4.3 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6e544b0a88b53114bfa5a57e21b7be7a8dfc9d0
- http://seclists.org/oss-sec/2017/q3/345
- http://www.securityfocus.com/bid/100517
- https://github.com/torvalds/linux/commit/a6e544b0a88b53114bfa5a57e21b7be7a8dfc9d0
- https://www.suse.com/security/cve/CVE-2017-13715.html
- https://security-tracker.debian.org/tracker/CVE-2017-13715
CWEs
CWE-665
Verify integrity in audit chain (admin only). AS-IS.