CVE-2018-5333

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-01-11 · updated 2026-06-17
Weakness: CWE-476

Description

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.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 17.10
Debian Linux: 7.0, 8.0
Linux kernel: through 4.14.13

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7d11f77f84b27cef452cee332f4e469503084737
http://packetstormsecurity.com/files/156053/Reliable-Datagram-Sockets-RDS-rds_atomic_free_op-Privilege-Escalation.html
http://www.securityfocus.com/bid/102510
https://access.redhat.com/errata/RHSA-2018:0470
https://github.com/torvalds/linux/commit/7d11f77f84b27cef452cee332f4e469503084737
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
https://usn.ubuntu.com/3583-1/
https://usn.ubuntu.com/3583-2/
https://usn.ubuntu.com/3617-1/
https://usn.ubuntu.com/3617-2/
https://usn.ubuntu.com/3617-3/
https://usn.ubuntu.com/3619-1/

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