CVE-2018-16864
CVE-2018-16864 Vulnerability Analysis & Exploit Intelligence
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate his privileges. Versions through v240 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
7.4
HIGH
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
Total
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 |
|---|---|---|---|---|---|
| 7.4 | CVSS 3.0 | HIGH | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-770
Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.
- T1498.001Network Denial of Service: Direct Network Flood
- T1499Endpoint Denial of Service
- T1499.003Endpoint Denial of Service: Application Exhaustion Flood
References
17 on the record
- www.securityfocus.com/bid/106523
vdb-entry, x_refsource_BID
- access.redhat.com/errata/RHSA-2019:0342
vendor-advisory, x_refsource_REDHAT
- lists.debian.org/debian-lts-announce/2019/01/msg00016.html
mailing-list, x_refsource_MLIST
- www.debian.org/security/2019/dsa-4367
vendor-advisory, x_refsource_DEBIAN
- access.redhat.com/errata/RHSA-2019:0204
vendor-advisory, x_refsource_REDHAT
- security.netapp.com/advisory/ntap-20190117-0001/
x_refsource_CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16864
x_refsource_CONFIRM
- www.qualys.com/2019/01/09/system-down/system-down.txt
x_refsource_MISC
Elsewhere on this site
- the systemd projectevery CVE for this vendor
- CWE-770other 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.