CVE-2017-16642 Information disclosure in n/a

What is CVE-2017-16642?

CVE-2017-16642 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 7 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In PHP before 5.6.32, 7.x before 7.0.25, and 7.1.x before 7.1.11, an error in the date extension's timelib_meridian handling of 'front of' and 'back of' directives could be used by attackers able to supply date strings to leak information from the interpreter, related to ext/date/lib/parse_date.c out-of-bounds reads affecting the php_parse_date function. NOTE: this is a different issue than CVE-2017-11145.

Weakness: CWE-125

Which versions are affected by CVE-2017-16642?

It affects 5 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Netapp Clustered Data Ontap, Netapp Storage Automation Store, Php Php.

How do I fix CVE-2017-16642?

Upgrade to a fixed version.

Is CVE-2017-16642 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-16642 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3r8x-r93p-fr32, UBUNTU-CVE-2017-16642.