Access Restriction Bypass Affecting php7 package, versions <7.2.16-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE312-PHP7-587765
- published9 Mar 2019
- disclosed9 Mar 2019
Introduced: 9 Mar 2019
CVE-2019-9637 (opens in a new tab)How to fix?
Upgrade Alpine:3.12 php7 to version 7.2.16-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php7 package and not the php7 package as distributed by Alpine.
See How to fix? for Alpine:3.12 relevant fixed versions and status.
An issue was discovered in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before 7.3.3. Due to the way rename() across filesystems is implemented, it is possible that file being renamed is briefly available with wrong permissions while the rename is ongoing, thus enabling unauthorized users to access the data.
References
- https://support.f5.com/csp/article/K53825211
- https://www.tenable.com/security/tns-2019-07
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9637
- https://www.debian.org/security/2019/dsa-4403
- https://lists.debian.org/debian-lts-announce/2019/03/msg00043.html
- https://security-tracker.debian.org/tracker/CVE-2019-9637
- https://bugs.php.net/bug.php?id=77630
- https://security.netapp.com/advisory/ntap-20190502-0007/
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00012.html
- https://access.redhat.com/errata/RHSA-2019:2519
- https://access.redhat.com/errata/RHSA-2019:3299
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-9637
- https://usn.ubuntu.com/3922-1/
- https://usn.ubuntu.com/3922-2/
- https://usn.ubuntu.com/3922-3/