SB2017042517 - Heap-based buffer overflow in icu (Alpine package)
Published: April 25, 2017
Security Bulletin ID
SB2017042517
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2017-7867)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error in utf8TextAccess() function in common/utext.cpp and the utext_moveIndex32* function in International Components for Unicode (ICU) for C/C++ before 2017-02-13. A remote unauthenticated attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=fd73d20c538bd7ec54c38d9cd87f9e1b387128c4
- https://git.alpinelinux.org/aports/commit/?id=e8ad6d532fbd6dda13b8f0dff91024771df323ba
- https://git.alpinelinux.org/aports/commit/?id=1caeb82fe92fda30c392b98096174b584433763b
- https://git.alpinelinux.org/aports/commit/?id=7f0ae8bb320acc329d7437c4a5c975b197ac1095
- https://git.alpinelinux.org/aports/commit/?id=aed0c2d1a6d20e48cdc0ecaff89883d567d7331d
- https://git.alpinelinux.org/aports/commit/?id=afb2d6502f38c7b5b18bac53ecd8d08dcb59d14c
- https://git.alpinelinux.org/aports/commit/?id=cef6067bc39e2ebbefc2bd09d08765c52ecc424c