CVE-2016-9604
CVE-2016-9604 Vulnerability Analysis & Exploit Intelligence
It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.
Published Updated Sources: cvelistV5, redhat
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
0%
chance of exploitation in 30 days
CVSS base
4.4
MEDIUM
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 4.4 | CVSS 3.0 | MEDIUM | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-732
Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.
- T1574.010Hijack Execution Flow: ServicesFile Permissions Weakness
- T1548Abuse Elevation Control Mechanism
- T1083File and Directory Discovery
References
8 on the record
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f
x_refsource_CONFIRM
- access.redhat.com/errata/RHSA-2017:2669
vendor-advisory, x_refsource_REDHAT
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604
x_refsource_CONFIRM
- bugzilla.novell.com/show_bug.cgi?id=1035576
x_refsource_CONFIRM
- people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html
x_refsource_CONFIRM
- www.securityfocus.com/bid/102135
vdb-entry, x_refsource_BID
- access.redhat.com/errata/RHSA-2017:2077
vendor-advisory, x_refsource_REDHAT
- access.redhat.com/errata/RHSA-2017:1842
vendor-advisory, x_refsource_REDHAT
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.