Amazon Linux 2 Security Advisory: ALAS-2021-1584
Advisory Release Date: 2021-01-05 23:34 Pacific
Advisory Updated Date: 2021-01-06 20:55 Pacific
Severity:
Medium
Issue Overview:
Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked. (CVE-2020-28948)
Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed. (CVE-2020-28949)
Affected Packages:
php-pear
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update php-pear to update your system.
New Packages:
noarch:
php-pear-1.10.12-4.amzn2.0.1.noarch
src:
php-pear-1.10.12-4.amzn2.0.1.src