CVE-2018-5333 EXPLOIT
5.5
MEDIUM · CVSS 3.0 · EPSS 7.2% (pctl 94)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 5.5 (MEDIUM, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 7.21% — more likely to be exploited than 94% of all CVEs |
| Weakness | CWE-476 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-01-11 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Reliable Datagram Sockets (RDS) - rds_atomic_free_op NULL pointer dereference Privilege Escalation (Metasploit) | 2020-01-23 |
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/
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3632-1/
- https://www.debian.org/security/2018/dsa-4187
- 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
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