CVE-2016-7042
The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allows local users to cause a denial…
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
Description
The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allows local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file.
- CVSS 3.0
- 6.2 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.40% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.openwall.com/lists/oss-security/2016/10/13/5Mailing List
- http://www.securityfocus.com/bid/93544
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:2669
- https://bugzilla.redhat.com/show_bug.cgi?id=1373966Issue Tracking, Third Party Advisory
- https://source.android.com/security/bulletin/2017-01-01.html
- http://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.openwall.com/lists/oss-security/2016/10/13/5Mailing List
- http://www.securityfocus.com/bid/93544
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:2669
- https://bugzilla.redhat.com/show_bug.cgi?id=1373966Issue Tracking, Third Party Advisory
- https://source.android.com/security/bulletin/2017-01-01.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.