Vulnerability CVE-2018-5333
Published: 2018-01-11

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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Reliable Datagram Sockets (RDS) rds_atomic_free_op Privilege Escalation
Brendan Coles
23.01.2020
Med.
Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Esca
Mohamed
27.01.2020

Type:

CWE-476

 (NULL Pointer Dereference)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7d11f77f84b27cef452cee332f4e469503084737
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
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