CVE-2016-4538

Priority
Description
The bcpowmod function in ext/bcmath/bcmath.c in PHP before 5.5.35, 5.6.x
before 5.6.21, and 7.x before 7.0.6 modifies certain data structures
without considering whether they are copies of the _zero_, _one_, or _two_
global variable, which allows remote attackers to cause a denial of service
or possibly have unspecified other impact via a crafted call.
Assigned-to
mdeslaur
Notes
sbeattieFixed in 7.0.6, 5.6.21, 5.5.35
mdeslaursame commit as CVE-2016-4537
Package
Source: php5 (LP Ubuntu Debian)
Upstream:released (5.6.21+dfsg-1)
Ubuntu 14.04 ESM (Trusty Tahr):released (5.5.9+dfsg-1ubuntu4.17)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Patches:
Upstream:https://git.php.net/?p=php-src.git;a=commit;h=d650063a0457aec56364e4005a636dc6c401f9cd
Package
Upstream:released (7.0.6-1)
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (7.0.4-7ubuntu2.1)
Patches:
Upstream:https://git.php.net/?p=php-src.git;a=commit;h=d650063a0457aec56364e4005a636dc6c401f9cd
More Information

Updated: 2019-12-05 18:45:16 UTC (commit dd38ff22974aae499eb50644b9d5a2817483cbdb)