SB2018072417 - Out-of-bounds read in php7 (Alpine package)
Published: July 24, 2018
Security Bulletin ID
SB2018072417
CSH Severity
Medium
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 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2019-9638)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in the EXIF component within exif_process_IFD_in_MAKERNOTE when converting maker_note->offset relationship to value_len. A remote attacker can trigger an 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=ebcd3398f2d6e6f536fbfeaba9cc3b84ac377251
- https://git.alpinelinux.org/aports/commit/?id=583c0d55e9e7208425dd53eb1739a7010b6b0dbc
- https://git.alpinelinux.org/aports/commit/?id=7c1daf27a04307093cef0fcb3f1c5ab4bb68eee1
- https://git.alpinelinux.org/aports/commit/?id=d42b915a2245405763bb485ededfbdb01393f109