Resource Exhaustion Affecting kernel-rt-debug package, versions <0:3.10.0-693.17.1.rt56.636.el7
Threat Intelligence
Exploit Maturity
Mature
EPSS
0.04% (1st
percentile)
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Test your applications- Snyk ID SNYK-RHEL7-KERNELRTDEBUG-4823869
- published 26 Jul 2021
- disclosed 1 Apr 2017
Introduced: 1 Apr 2017
CVE-2017-7472 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-rt-debug to version 0:3.10.0-693.17.1.rt56.636.el7 or higher.
This issue was patched in RHSA-2018:0152.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls.
References
- http://www.securityfocus.com/bid/98422
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b
- http://openwall.com/lists/oss-security/2017/05/11/1
- https://bugzilla.novell.com/show_bug.cgi?id=1034862
- https://bugzilla.redhat.com/show_bug.cgi?id=1442086
- https://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b
- https://lkml.org/lkml/2017/4/1/235
- https://lkml.org/lkml/2017/4/3/724
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13
- https://access.redhat.com/security/cve/CVE-2017-7472
- https://www.exploit-db.com/exploits/42136/
- https://access.redhat.com/errata/RHSA-2018:0152
- http://www.securitytracker.com/id/1038471
- http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
- https://www.exploit-db.com/exploits/42136