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Debian DLA-1608-1 : php5 security update
high Nessus Plugin ID 119695
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Synopsis
The remote Debian host is missing a security update.Description
Vulnerabilities have been discovered in php5, a server-side, HTML-embedded scripting language. Note that this update includes a change to the default behavior for IMAP connections. See below for details.CVE-2018-19518
An argument injection vulnerability in imap_open() may allow a remote attacker to execute arbitrary OS commands on the IMAP server.
The fix for the CVE-2018-19518 vulnerability included this additional note from the upstream developers :
Starting with 5.6.38, rsh/ssh logins are disabled by default. Use imap.enable_insecure_rsh if you want to enable them. Note that the IMAP library does not filter mailbox names before passing them to rsh/ssh command, thus passing untrusted data to this function with rsh/ssh enabled is insecure.
CVE-2018-19935
A NULL pointer dereference leads to an application crash and a denial of service via an empty string in the message argument to the imap_mail function of ext/imap/php_imap.c.
For Debian 8 'Jessie', these problems have been fixed in version 5.6.39+dfsg-0+deb8u1.
We recommend that you upgrade your php5 packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Upgrade the affected packages.See Also
https://lists.debian.org/debian-lts-announce/2018/12/msg00006.html
Plugin Details
Severity: High
ID: 119695
File Name: debian_DLA-1608.nasl
Version: 1.7
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 12/17/2018
Updated: 7/16/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.4
CVSS v2
Risk Factor: High
Base Score: 8.5
Temporal Score: 7
Vector: CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2018-19518
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 7
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:php5, p-cpe:/a:debian:debian_linux:php5-sqlite, p-cpe:/a:debian:debian_linux:php5-intl, p-cpe:/a:debian:debian_linux:php5-dev, p-cpe:/a:debian:debian_linux:php5-dbg, p-cpe:/a:debian:debian_linux:php5-sybase, p-cpe:/a:debian:debian_linux:php5-gmp, p-cpe:/a:debian:debian_linux:php5-pspell, p-cpe:/a:debian:debian_linux:php5-curl, p-cpe:/a:debian:debian_linux:php5-recode, p-cpe:/a:debian:debian_linux:php5-snmp, p-cpe:/a:debian:debian_linux:libapache2-mod-php5filter, p-cpe:/a:debian:debian_linux:php5-mysqlnd, p-cpe:/a:debian:debian_linux:php5-enchant, p-cpe:/a:debian:debian_linux:php5-pgsql, p-cpe:/a:debian:debian_linux:php5-imap, p-cpe:/a:debian:debian_linux:php5-ldap, p-cpe:/a:debian:debian_linux:php5-common, p-cpe:/a:debian:debian_linux:php5-phpdbg, p-cpe:/a:debian:debian_linux:php5-tidy, p-cpe:/a:debian:debian_linux:php5-readline, p-cpe:/a:debian:debian_linux:php5-odbc, p-cpe:/a:debian:debian_linux:php5-gd, p-cpe:/a:debian:debian_linux:php-pear, p-cpe:/a:debian:debian_linux:libapache2-mod-php5, p-cpe:/a:debian:debian_linux:php5-mysql, p-cpe:/a:debian:debian_linux:libphp5-embed, p-cpe:/a:debian:debian_linux:php5-xmlrpc, p-cpe:/a:debian:debian_linux:php5-cgi, p-cpe:/a:debian:debian_linux:php5-fpm, p-cpe:/a:debian:debian_linux:php5-interbase, cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:php5-xsl, p-cpe:/a:debian:debian_linux:php5-cli, p-cpe:/a:debian:debian_linux:php5-mcrypt
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 12/16/2018
Vulnerability Publication Date: 11/25/2018
Exploitable With
Metasploit (php imap_open Remote Code Execution)
Reference Information
CVE: CVE-2018-19518, CVE-2018-19935