SB2016031406 - Stack-based buffer overflow in putty (Alpine package)
Published: March 14, 2016
Security Bulletin ID
SB2016031406
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-2016-2563)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing a crafted SCP-SINK file-size response to an SCP download request. A remote unauthenticated attacker can trigger stack-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=d65dec66e1495214f9a7079db156b5268fb3dbbc
- https://git.alpinelinux.org/aports/commit/?id=da0edcfa06c5c38fce0fd1a83a92ca3a3d9303f6
- https://git.alpinelinux.org/aports/commit/?id=7c18b536e1c1329ab8466eb402c956ebfff315ba
- https://git.alpinelinux.org/aports/commit/?id=9c23dcf82369721450d2f76a6068109f7a9d1b47