CVE-2017-13715
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 9.65% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-665
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6e544b0a88b53114bfa5a57e21b7be7a8dfc9d0Issue Tracking, Patch, Vendor Advisory
- http://seclists.org/oss-sec/2017/q3/345Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/100517Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/a6e544b0a88b53114bfa5a57e21b7be7a8dfc9d0Issue Tracking, Patch, Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6e544b0a88b53114bfa5a57e21b7be7a8dfc9d0Issue Tracking, Patch, Vendor Advisory
- http://seclists.org/oss-sec/2017/q3/345Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/100517Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/a6e544b0a88b53114bfa5a57e21b7be7a8dfc9d0Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.