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CVE-2019-9675

Published: 11 March 2019

** DISPUTED ** An issue was discovered in PHP 7.x before 7.1.27 and 7.3.x before 7.3.3. phar_tar_writeheaders_int in ext/phar/tar.c has a buffer overflow via a long link value. NOTE: The vendor indicates that the link value is used only when an archive contains a symlink, which currently cannot happen: "This issue allows theoretical compromise of security, but a practical attack is usually impossible."

Notes

AuthorNote
mdeslaur
released in USN-3922-1, ommited from text

Priority

Low

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty
Released (5.5.9+dfsg-1ubuntu4.29)
xenial Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

php7.0
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Does not exist

xenial
Released (7.0.33-0ubuntu0.16.04.3)
bionic Does not exist

cosmic Does not exist

disco Does not exist

Patches:
upstream: http://git.php.net/?p=php-src.git;a=commit;h=e0f5d62bd6690169998474b62f92a8c5ddf0e699 (7.1)

php7.2
Launchpad, Ubuntu, Debian
upstream
Released (7.2.16)
trusty Does not exist

xenial Does not exist

bionic
Released (7.2.15-0ubuntu0.18.04.2)
cosmic
Released (7.2.15-0ubuntu0.18.10.2)
disco
Released (7.2.15-0ubuntu3)
Patches:

upstream: http://git.php.net/?p=php-src.git;a=commit;h=e0f5d62bd6690169998474b62f92a8c5ddf0e699
php7.3
Launchpad, Ubuntu, Debian
upstream
Released (7.3.3)
trusty Does not exist

xenial Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

Severity score breakdown

Parameter Value
Base score 8.1
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H