SB2018060820 - Amazon Linux AMI update for git
Published: June 8, 2018 Updated: June 12, 2018
Security Bulletin ID
SB2018060820
Severity
High
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Improper input validation (CVE-ID: CVE-2018-11235)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to improper validation of submodule "names" supplied via the untrusted .gitmodules file when appending them to the '$GIT_DIR/modules' directory. A remote attacker can return specially crafted data to create or overwrite files on the target user's system when the repository is cloned and execute arbitrary code with elevated privileges.
2) Improper input validation (CVE-ID: CVE-2018-11233)
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The weakness exists due to input validation flaw in processing path names on NTFS-based systems. A remote attacker can supply specially crafted path names and read random memory contents.
Remediation
Install update from vendor's website.