CVE-2015-8539
The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c,…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.42% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- canonical/ubuntu linux · suse/linux enterprise real time extension · linux/linux kernel
- Source
- cve@mitre.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096fe9eaea40a17e125569f9e657e34cdb6d73bdVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00008.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00011.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/09/1Issue Tracking, Mailing List, Patch, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0151Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0152Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0181Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1284450Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/096fe9eaea40a17e125569f9e657e34cdb6d73bdIssue Tracking, Patch, Vendor Advisory
- https://usn.ubuntu.com/3798-1/Third Party Advisory
- https://usn.ubuntu.com/3798-2/Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096fe9eaea40a17e125569f9e657e34cdb6d73bdVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00008.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00011.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.