Buffer overflow in chicken (Alpine package)
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-6949 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
chicken (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU33341
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: CVE-2017-6949
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe 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.
MitigationInstall update from vendor's website.
Vulnerable software versionschicken (Alpine package): 4.12.0-r1
External linkshttp://git.alpinelinux.org/aports/commit/?id=b733eb9c8d9ac21f610556c435502e4e74c51f77
http://git.alpinelinux.org/aports/commit/?id=dbc1ba40744e0b5f2634d1297df50de6bdec9046
http://git.alpinelinux.org/aports/commit/?id=97eb361775b8195637747dcc0653b7b8c066c039
http://git.alpinelinux.org/aports/commit/?id=73556d997143937fe09a607debe5c16f29c989d7
http://git.alpinelinux.org/aports/commit/?id=2b37087c38da0bca5f8f8e7b6595be427e426f6b
Q & A
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.
