Medium severity · published Jun 13, 2023
CVE-2023-31439
An issue was discovered in systemd 253
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
An issue was discovered in systemd 253. An attacker can modify the contents of past events in a sealed log file and then adjust the file such that checking the integrity shows no error, despite modifications. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SY
Systemd · Systemd Project
253 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-31439
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-31439
Patch
https://github.com/kastel-security/Journald
Technical Description
https://github.com/kastel-security/Journald/blob/main/journald-publication.pdf
github.com
https://github.com/systemd/systemd/pull/28885
Release Notes
https://github.com/systemd/systemd/releases
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