High severity · published Oct 26, 2018
CVE-2018-15686
A vulnerability in unit_deserialize of systemd allows an attacker to supply arbitrary state across systemd re-execution via NotifyAccess
7.8
CVSS
2.3%
EPSS
No
On KEV
Description
A vulnerability in unit_deserialize of systemd allows an attacker to supply arbitrary state across systemd re-execution via NotifyAccess. This can be used to improperly influence systemd execution and possibly lead to root privilege escalation. Affected releases are systemd versions up to and including 239.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
DL
Debian Linux · Debian
8.0 · source: NVD
SY
Systemd · Systemd Project
through 239 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-15686
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-15686
Third Party Advisory
http://www.securityfocus.com/bid/105747
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2091
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3222
Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0593
Patch
https://github.com/systemd/systemd/pull/10519
lists.apache.org
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
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