CVE-2017-16642

Publication date 7 November 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
php5	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed 5.5.9+dfsg-1ubuntu4.23
php7.0	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Ignored end of life
	16.04 LTS xenial	Fixed 7.0.25-0ubuntu0.16.04.1
	14.04 LTS trusty	Not in release
php7.1	18.04 LTS bionic	Not in release
	17.10 artful	Not affected
	17.04 zesty	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Notes

leosilva

following debian comments, precise is not affected.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
php5	Upstream: a7815e6
php7.1	Upstream: 5c0455b

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-3566-1
PHP vulnerabilities
12 February 2018