Vulnerability Details : CVE-2017-7472
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.
Vulnerability category: Denial of service
Products affected by CVE-2017-7472
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Threat overview for CVE-2017-7472
Top countries where our scanners detected CVE-2017-7472
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2017-7472 24,267
Threat actors abusing to this issue?
Yes
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affected by CVE-2017-7472!
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2017-7472
0.76%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7472
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2017-7472
-
The product does not release or incorrectly releases a resource before it is made available for re-use.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7472
-
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13
Release Notes;Vendor Advisory
-
https://lkml.org/lkml/2017/4/1/235
LKML: Eric Biggers: [PATCH] KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyringsBroken Link
-
http://www.securitytracker.com/id/1038471
Linux Kernel Thread Keyring Leak in keyctl_set_reqkey_keyring() Lets Local Users Consume Excessive Memory Resources - SecurityTracker
-
http://www.securityfocus.com/bid/98422
Linux Kernel 'security/keys/keyctl.c' Local Denial of Service Vulnerability
-
https://lkml.org/lkml/2017/4/3/724
LKML: Eric Biggers: [PATCH v2] KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyringsBroken Link
-
https://access.redhat.com/errata/RHSA-2018:0151
RHSA-2018:0151 - Security Advisory - Red Hat Customer Portal
-
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
[security-announce] SUSE-SU-2018:0011-1: important: Security update for
-
https://bugzilla.novell.com/show_bug.cgi?id=1034862
Bug 1034862 – VUL-0: CVE-2017-7472: kernel-source: kernel: keyctl_set_reqkey_keyring() leaks thread keyringsIssue Tracking;Patch
-
http://openwall.com/lists/oss-security/2017/05/11/1
oss-security - CVE-2017-7472 Linux kernel: KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyringsMailing List;Patch;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2018:0152
RHSA-2018:0152 - Security Advisory - Red Hat Customer Portal
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b
kernel/git/torvalds/linux.git - Linux kernel source treeIssue Tracking;Patch;Third Party Advisory
-
https://www.exploit-db.com/exploits/42136/
Linux Kernel < 4.10.13 - 'keyctl_set_reqkey_keyring' Local Denial of Service
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https://access.redhat.com/errata/RHSA-2018:0181
RHSA-2018:0181 - Security Advisory - Red Hat Customer Portal
-
https://bugzilla.redhat.com/show_bug.cgi?id=1442086
1442086 – (CVE-2017-7472) CVE-2017-7472 kernel: keyctl_set_reqkey_keyring() leaks thread keyringsIssue Tracking;Patch
-
https://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b
KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyrings · torvalds/linux@c9f838d · GitHubIssue Tracking;Patch;Third Party Advisory
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