| Name | CVE-2017-16642 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-4080-1, DSA-4081-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| php5 (PTS) | jessie, jessie (lts) | 5.6.40+dfsg-0+deb8u21 | fixed |
| php7.0 (PTS) | stretch (security) | 7.0.33-0+deb9u12 | fixed |
| stretch (lts), stretch | 7.0.33-0+deb9u19 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| php5 | source | wheezy | (not affected) | | | |
| php5 | source | jessie | 5.6.33+dfsg-0+deb8u1 | | DSA-4081-1 | |
| php5 | source | (unstable) | (unfixed) | | | |
| php7.0 | source | stretch | 7.0.27-0+deb9u1 | | DSA-4080-1 | |
| php7.0 | source | (unstable) | 7.0.25-1 | | | |
| php7.1 | source | (unstable) | 7.1.11-1 | | | |
Notes
[wheezy] - php5 <not-affected> (Vulnerable code not present; proof of concept produces expected non-buggy output; upstream patch also appears overly intrusive)
Fixed in: 5.6.32, 7.0.25, 7.1.11
PHP Bug: https://bugs.php.net/bug.php?id=75055
https://github.com/derickr/timelib/commit/aa9156006e88565e1f1a5f7cc088b18322d57536
https://github.com/php/php-src/commit/5c0455bf2c8cd3c25401407f158e820aa3b239e1