CVE-2018-16865
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in…
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the journal socket. A local attacker, or a remote one if systemd-journal-remote is used, may use this flaw to crash systemd-journald or execute code with journald privileges. Versions through v240 are vulnerable.
Timeline
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.0% · top 12% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
- affected through v240
References (21)
- RHSA-2019:0342 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [debian-lts-announce] 20190123 [SECURITY] [DLA 1639-1] systemd security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 106525 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-4367 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2019:0204 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16865 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://security.netapp.com/advisory/ntap-20190117-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.qualys.com/2019/01/09/system-down/system-down.txt (opens in a new tab)x_refsource_MISCx_transferred
- USN-3855-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2019:0049 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0271 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0361 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-201903-07 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html (opens in a new tab)x_refsource_MISCx_transferred
- RHBA-2019:0327 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20190510 Re: System Down: A systemd-journald exploit (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20190513 Re: System Down: A systemd-journald exploit (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html (opens in a new tab)x_refsource_MISCx_transferred
- 20190513 Re: System Down: A systemd-journald exploit (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- RHSA-2019:2402 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20210720 CVE-2021-33910: Denial of service (stack exhaustion) in systemd (PID 1) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-16865)Record last updated .