SB2019060531 - Input validation error in perl-email-address (Alpine package)
Published: June 5, 2019
Security Bulletin ID
SB2019060531
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2018-12558)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The parse() method in the Email::Address module through 1.909 for Perl is vulnerable to Algorithmic complexity on specially prepared input, leading to Denial of Service. Prepared special input that caused this problem contained 30 form-field characters ("f").
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=18070a9ba09af91c141de190a77de4d154f310e4
- https://git.alpinelinux.org/aports/commit/?id=587d0f6837182b94b1c14fb78949b85ac188c60c
- https://git.alpinelinux.org/aports/commit/?id=7def72e88762d07dcb50382ca5266d0f83b38cce
- https://git.alpinelinux.org/aports/commit/?id=b38f0359fd243aec3574362ebc61bcb5c7245868