CVE-2017-9525

MEDIUM
6.7
CVSS Score
Published: June 9, 2017 at 04:00 PM UTC
Updated: June 17, 2026 at 01:28 AM UTC
2 products affected across 2 vendorsDebian LinuxCron· also runs on 1 platform

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.6%

Description

In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 3.0pl1-128.
canonical-ubuntu-linux (environment) · debian-debian-linux (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

x_refsource_MISCIssue TrackingThird Party AdvisoryVendor Advisory
http://bugs.debian.org/864466
x_refsource_MISCMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/06/08/3
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1038651
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00025.html
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00029.html

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-59

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