Vulnerability-Lookup

CNVD-2019-06574

Vulnerability from cnvd - Published: 2019-03-08

Title

systemd 'unit_deserialize'函数本地权限提升漏洞漏洞

Description

systemd是德国软件开发者Lennart Poettering和其他人共同研发的一款基于Linux的系统和服务管理器，它兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd 239及之前版本中的'unit_deserialize'函数存在安全漏洞。攻击者可利用该漏洞影响systemd的正常运行并将权限提升至root。

Severity

高

Formal description

目前厂商还未发布升级补丁，请相关用户及时关注厂商主页: https://www.linux.org/

Reference

https://www.exploit-db.com/exploits/45714

Impacted products

Name
systemd systemd <=239

Show details on source website

JSON

To clipboard

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CVE-2018-15686 (GCVE-0-2018-15686)

Vulnerability from cvelistv5 – Published: 2018-10-26 14:00 – Updated: 2025-06-09 15:50

Title

systemd: reexec state injection: fgets() on overlong lines leads to line splitting

Summary

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.

Severity

7 (High)


                        
                          CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-09 15:50 UTC

CWE

fgets() can be confused by overly-long input strings. The first read will return a partial string and subsequent reads will begin as if it were a new line.
CWE-502 - Deserialization of Untrusted Data

Assigner

canonical mitre root

References

11 references

URL	Tags
https://security.gentoo.org/glsa/201810-10	vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/105747	vdb-entryx_refsource_BID
https://www.exploit-db.com/exploits/45714/	exploitx_refsource_EXPLOIT-DB
https://usn.ubuntu.com/3816-1/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:2091	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3222	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0593	vendor-advisoryx_refsource_REDHAT
https://lists.apache.org/thread.html/r1b103833cb5…	mailing-listx_refsource_MLIST
https://www.oracle.com//security-alerts/cpujul2021.html	x_refsource_MISC
https://github.com/systemd/systemd/pull/10519	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
systemd	systemd	Affected: unspecified , ≤ 239 (custom)

Date Public

2018-10-25 00:00

Credits

Jann Horn

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2019-06574

CVE-2018-15686 (GCVE-0-2018-15686)

Tags

Sightings

Nomenclature

Related by attack behaviour