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CVE-2016-5773

Published: 24 June 2016

php_zip.c in the zip extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data containing a ZipArchive object.

Notes

AuthorNote
mdeslaur
Applications should never deserialize unauthenticated data.
precise needs backported fix
we will not be fixing this in Ubuntu 12.04 LTS. We recommend
validating untrusted data before unserializing.

Priority

Low

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
precise Ignored

trusty
Released (5.5.9+dfsg-1ubuntu4.19)
upstream
Released (5.6.23)
wily Ignored
(end of life)
xenial Does not exist

Patches:
upstream: http://git.php.net/?p=php-src.git;a=commit;h=f6aef68089221c5ea047d4a74224ee3deead99a6

php7.0
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (7.0.8)
wily Does not exist

xenial
Released (7.0.8-0ubuntu0.16.04.1)
Patches:

upstream: http://git.php.net/?p=php-src.git;a=commit;h=f6aef68089221c5ea047d4a74224ee3deead99a6

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H