Vulnerability identifier: #VU33341
Vulnerability risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Chicken Scheme
Universal components / Libraries /
Software for developers
Vendor: call-cc.org
Description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
An issue was discovered in CHICKEN Scheme through 4.12.0. When using a nonstandard CHICKEN-specific extension to allocate an SRFI-4 vector in unmanaged memory, the vector size would be used in unsanitised form as an argument to malloc(). With an unexpected size, the impact may have been a segfault or buffer overflow.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Chicken Scheme: 4.0.0 - 4.12.0
External links
http://lists.gnu.org/archive/html/chicken-announce/2017-03/msg00000.html
http://www.securityfocus.com/bid/97317
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.