CVE-2018-14734

Description

drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.06%
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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=cb2595c1393b4a5211534e6f0a0fbad369e21ad8 patch vendor advisory
https://usn.ubuntu.com/3797-2/ third party advisory vendor advisory
https://usn.ubuntu.com/3847-1/ third party advisory vendor advisory
https://usn.ubuntu.com/3797-1/ third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html third party advisory mailing list
https://usn.ubuntu.com/3847-2/ third party advisory vendor advisory
https://usn.ubuntu.com/3849-1/ third party advisory vendor advisory
https://usn.ubuntu.com/3849-2/ third party advisory vendor advisory
https://www.debian.org/security/2018/dsa-4308 third party advisory vendor advisory
https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8 third party advisory patch
https://usn.ubuntu.com/3847-3/ third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:0831 vendor advisory
https://access.redhat.com/errata/RHSA-2019:2043 vendor advisory
https://access.redhat.com/errata/RHSA-2019:2029 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-14734?
CVE-2018-14734 has been scored as a high severity vulnerability.
How to fix CVE-2018-14734?
To fix CVE-2018-14734, 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-2018-14734 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-14734 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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