systemd-journald up to v240 Socket memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in systemd-journald up to v240. It has been rated as critical. This issue affects some unknown processing of the component Socket Handler. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2018-16865. Attacking locally is a requirement. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in systemd-journald up to v240. This affects an unknown function of the component Socket Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 01/09/2019. The weakness was published 01/11/2019 with Qualys as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2018-16865 since 09/11/2018. An attack has to be approached locally. The successful exploitation requires a authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 121061 (SUSE SLES12 Security Update : systemd (SUSE-SU-2019:0054-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157892 (Oracle Enterprise Linux Security Update for systemd (ELSA-2019-0049)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (121061) and SecurityFocus (BID 106525†). Similar entries are available at VDB-129044, VDB-133502, VDB-133503 and VDB-133504. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121061
Nessus Name: SUSE SLES12 Security Update : systemd (SUSE-SU-2019:0054-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/11/2018 🔍
01/09/2019 +120 days 🔍
01/09/2019 +0 days 🔍
01/09/2019 +0 days 🔍
01/10/2019 +1 days 🔍
01/11/2019 +1 days 🔍
01/11/2019 +0 days 🔍
01/12/2019 +1 days 🔍
06/26/2023 +1626 days 🔍

Sourcesinfo

Advisory: RHSA-2019:0049
Organization: Qualys
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-16865 (🔍)
GCVE (CVE): GCVE-0-2018-16865
GCVE (VulDB): GCVE-100-129045

OVAL: 🔍

SecurityFocus: 106525 - systemd-journald CVE-2018-16865 Stack Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 01/12/2019 11:52
Updated: 06/26/2023 10:48
Changes: 01/12/2019 11:52 (72), 04/28/2020 20:29 (7), 06/26/2023 10:48 (4)
Complete: 🔍
Cache ID: 216::103

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