CVE-2018-5332

Description

In the Linux kernel through 3.2, the rds_message_alloc_sgs() function does not validate a value that is used during DMA page allocation, leading to a heap-based out-of-bounds write (related to the rds_rdma_extra_size function in net/rds/rdma.c).

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org Vendor Advisory kernel.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c095508770aebf1b9218e77026e48345d719b17c patch vendor advisory
https://www.debian.org/security/2018/dsa-4187 third party advisory vendor advisory
https://github.com/torvalds/linux/commit/c095508770aebf1b9218e77026e48345d719b17c patch vendor advisory
https://usn.ubuntu.com/3617-1/ third party advisory vendor advisory
https://usn.ubuntu.com/3619-2/ third party advisory vendor advisory
https://usn.ubuntu.com/3617-3/ third party advisory vendor advisory
https://usn.ubuntu.com/3632-1/ third party advisory vendor advisory
https://usn.ubuntu.com/3620-2/ third party advisory vendor advisory
http://www.securityfocus.com/bid/102507 vdb entry third party advisory broken link
https://access.redhat.com/errata/RHSA-2018:0470 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html third party advisory mailing list
https://usn.ubuntu.com/3617-2/ third party advisory vendor advisory
https://usn.ubuntu.com/3620-1/ third party advisory vendor advisory
https://usn.ubuntu.com/3619-1/ third party advisory vendor advisory
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=60daca9efbb3e4109ebc1f7069543e5573fc124e mailing list patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5332?
CVE-2018-5332 has been scored as a high severity vulnerability.
How to fix CVE-2018-5332?
To fix CVE-2018-5332, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-5332 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-5332 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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