CVE-2017-15115
HIGH severity · CVSS 7.8 · Use-after-free
7.8CVSS HIGH
Summary
The sctp_do_peeloff function in net/sctp/socket.c in the Linux kernel before 4.14 does not check whether the intended netns is used in a peel-off action, which allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via crafted system calls.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=df80cd9b28b9ebaa284a41df611dbf3a2d05ca74 ↗
Additional information
- NVD record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=df80cd9b28b9ebaa284a41df611dbf3a2d05ca74Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=1513345Patch
- https://github.com/torvalds/linux/commit/df80cd9b28b9ebaa284a41df611dbf3a2d05ca74Patch
- https://patchwork.ozlabs.org/patch/827077/Patch
- http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.htmlAdvisory
- http://seclists.org/oss-sec/2017/q4/282Advisory
- http://www.securityfocus.com/bid/101877Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.htmlAdvisory