CVE-2018-5333
MEDIUM severity · CVSS 5.5 · CWE-476
5.5CVSS MEDIUM
Summary
In the Linux kernel through 4.14.13, the rds_cmsg_atomic function in net/rds/rdma.c mishandles cases where page pinning fails or an invalid address is supplied, leading to an rds_atomic_free_op NULL pointer dereference.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)8%
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. 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=7d11f77f84b27cef452cee332f4e469503084737 ↗
Additional information
- NVD record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7d11f77f84b27cef452cee332f4e469503084737Patch
- https://github.com/torvalds/linux/commit/7d11f77f84b27cef452cee332f4e469503084737Patch
- http://packetstormsecurity.com/files/156053/Reliable-Datagram-Sockets-RDS-rds_atomic_free_op-Privilege-Escalation.html
- http://www.securityfocus.com/bid/102510Advisory
- https://access.redhat.com/errata/RHSA-2018:0470Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.htmlAdvisory
- https://usn.ubuntu.com/3583-1/Advisory
- https://usn.ubuntu.com/3583-2/Advisory