cnvd - cnvd-2019-06574

cnvd-2019-06574

Vulnerability from cnvd

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": {
      "cveNumber": "CVE-2018-15686"
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  "discovererName": "Ubuntu, Jann Horn (Google Project Zero)",
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  "submitTime": "2018-10-29",
  "title": "systemd \u0027unit_deserialize\u0027\u51fd\u6570\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u6f0f\u6d1e"
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CVE-2018-15686 (GCVE-0-2018-15686)

Vulnerability from cvelistv5

Published

2018-10-26 14:00

Modified

2025-06-09 15:50

Severity ?

7.0 (High) - CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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.

References

▼	URL	Tags
	https://security.gentoo.org/glsa/201810-10	vendor-advisory, x_refsource_GENTOO
	https://lists.debian.org/debian-lts-announce/2018/11/msg00017.html	mailing-list, x_refsource_MLIST
	http://www.securityfocus.com/bid/105747	vdb-entry, x_refsource_BID
	https://www.exploit-db.com/exploits/45714/	exploit, x_refsource_EXPLOIT-DB
	https://usn.ubuntu.com/3816-1/	vendor-advisory, x_refsource_UBUNTU
	https://access.redhat.com/errata/RHSA-2019:2091	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:3222	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2020:0593	vendor-advisory, x_refsource_REDHAT
	https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E	mailing-list, x_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

	Vendor	Product	Version
	systemd	systemd	Version: unspecified <

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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