SB2017071916 - Stack-based buffer overflow in ncurses (Alpine package)
Published: July 19, 2017
Security Bulletin ID
SB2017071916
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) Stack-based buffer overflow (CVE-ID: CVE-2017-10684)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the fmt_entry function of ncurses due to stack-based buffer overflow when handling malicious input. A remote unauthenticated attacker can send a request that submits malicious input, trigger memory corruption and execute arbitrary code with elevated privileges.
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=6a5b68ce4707357d4e18eda94ec021eabff28abd
- https://git.alpinelinux.org/aports/commit/?id=762b9fd601983d8a6e6a60692158f3f22b1b60fe
- https://git.alpinelinux.org/aports/commit/?id=95c59a0b632f9907b2395a84fbe1aac07e925147
- https://git.alpinelinux.org/aports/commit/?id=f303e294fb206385ed1e11fd5188e7d2e6629b62
- https://git.alpinelinux.org/aports/commit/?id=213b1c9e6d82e0a04339d69c8f868ff13c48775a
- https://git.alpinelinux.org/aports/commit/?id=d5ed3d124d4bdd572b63974e635e5d7a2fd8a1c8
- https://git.alpinelinux.org/aports/commit/?id=ac658c440bf2097da963820d14d5e89d75887cd7
- https://git.alpinelinux.org/aports/commit/?id=bac940573393e980a46ef49d809df53058bba8b4
- https://git.alpinelinux.org/aports/commit/?id=e3586a1e221047f8b61cfa63eec6f2fc681a1bbb