Debian LTS: Security Advisory for php5 (DLA-2261-1)

Published: 2020-06-30 03:00:12
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Summary:
The remote host is missing an update for the 'php5' Linux Distribution Package(s) announced via the DLA-2261-1 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
It has been discovered, that a vulnerability in php5, a server-side, HTML-embedded scripting language, could lead to exhausted disk space on the server. When using overly long filenames or field names, a memory limit could be hit which results in stopping the upload but not cleaning up behind. Further the embedded version of 'file' is vulnerable to CVE-2019-18218. As it can not be exploited the same in php5 as in file, this issue is not handled as an own CVE but just as a bug, that has been fixed here (restrict the number of CDF_VECTOR elements to prevent a heap-based buffer overflow (4-byte out-of-bounds write)).

Affected Versions:
'php5' Linux Distribution Package(s) on Debian Linux.

Recommendations:
For Debian 8 'Jessie', this problem has been fixed in version 5.6.40+dfsg-0+deb8u12. We recommend that you upgrade your php5 Linux Distribution Packages.

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2019-11048
https://nvd.nist.gov/vuln/detail/CVE-2019-18218

References:

https://lists.debian.org/debian-lts-announce/2020/06/msg00033.html
https://security-tracker.debian.org/tracker/DLA-2261-1

Severity
High
CVSS Score
7.5
Published
2020-06-30
Modified
2020-06-30
Category
Debian Local Security Checks

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