SB2019080139 - Out-of-bounds read in php7 (Alpine package)
Published: August 1, 2019
Security Bulletin ID
SB2019080139
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2019-11042)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the exif_read_data() function in PHP EXIF extention. A remote attacker can create a specially crafted image file, pass it to the application, trigger out-of-bounds read error and read contents of memory on the system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=653805b88f263b8936ba3560db05ece894f979f2
- https://git.alpinelinux.org/aports/commit/?id=591b1611bea0124839b7a6627050f76ecfffc4a5
- https://git.alpinelinux.org/aports/commit/?id=0d93688ea580364d7ea84d310d77ffbeb1accb05
- https://git.alpinelinux.org/aports/commit/?id=11cfe4dd1666223714141c2462305137c3eface9
- https://git.alpinelinux.org/aports/commit/?id=14b8eeb01099ac825f24e7a21e634665d21c9de6