HIGH
systemd: chown_one() can dereference symlinks
Published Oct 26, 2018
7.0
HIGHCVSS 3.1
EPSS 1.06%
Description
A race condition in chown_one() of systemd allows an attacker to cause systemd to set arbitrary permissions on arbitrary files. Affected releases are systemd versions up to and including 239.
Affected products
-
Affected
- ≥ unspecified, ≤ 239
Configuration 1
OR
- 16.04
- 18.04
- 18.10
Configuration 2
- ≥ 235 · < 240
No data.
Red Hat Enterprise Linux 7
systemd
Not affected
Red Hat Enterprise Linux 8
systemd
Not affected
Red Hat Virtualization 4
systemd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | systemd | Not affected | n/a |
| Red Hat Enterprise Linux 8 | systemd | Not affected | n/a |
| Red Hat Virtualization 4 | systemd | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of systemd as shipped with Red Hat Enterprise Linux 7 as the vulnerable code was introduced in a newer version of the package.
Weaknesses (2)
References (10)
- http://www.securityfocus.com/bid/105748 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-15687 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1639076 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-7557 Advisory
- https://github.com/systemd/systemd/pull/10517/commits x_refsource_MISCPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-15687
- https://security.gentoo.org/glsa/201810-10 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://usn.ubuntu.com/3816-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-15687
- https://www.exploit-db.com/exploits/45715/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105748 | vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-15687 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1639076 | Issue Tracking | |
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-7557 | Advisory | |
| https://github.com/systemd/systemd/pull/10517/commits | x_refsource_MISCPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-15687 | ||
| https://security.gentoo.org/glsa/201810-10 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://usn.ubuntu.com/3816-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-15687 | ||
| https://www.exploit-db.com/exploits/45715/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner canonical
Published Oct 26, 2018
Updated Jun 9, 2025
Reserved Aug 22, 2018
Link CVE-2018-15687
CISA Vulnrichment
Updated Jun 9, 2025
GitHub
No data