CVE-2018-16866
CVE-2018-16866 Vulnerability Analysis & Exploit Intelligence
An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.
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
1%
chance of exploitation in 30 days
CVSS base
4.3
MEDIUM
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component
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 |
|---|---|---|---|---|---|
| 4.3 | CVSS 3.0 | MEDIUM | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-125
- CWE-200
Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.
- T1562.003Impair Defenses: Impair Command History Logging
- T1574.006Hijack Execution Flow: Dynamic Linker Hijacking
- T1574.007Hijack Execution Flow: Path Interception by PATH Environment Variable
References
14 on the record
- www.debian.org/security/2019/dsa-4367
vendor-advisory, x_refsource_DEBIAN
- security.netapp.com/advisory/ntap-20190117-0001/
x_refsource_CONFIRM
- www.qualys.com/2019/01/09/system-down/system-down.txt
x_refsource_MISC
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866
x_refsource_CONFIRM
- usn.ubuntu.com/3855-1/
vendor-advisory, x_refsource_UBUNTU
- www.securityfocus.com/bid/106527
vdb-entry, x_refsource_BID
- security.gentoo.org/glsa/201903-07
vendor-advisory, x_refsource_GENTOO
- www.openwall.com/lists/oss-security/2019/05/10/4
mailing-list, x_refsource_MLIST
Elsewhere on this site
- the systemd projectevery CVE for this vendor
- CWE-125other pages naming this weakness
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.