Input validation error in ruby (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-16201 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
ruby (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Input validation error
EUVDB-ID: #VU23007
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-16201
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the WEBrick::HTTPAuth::DigestAuth in Ruby due to a regular expression issue. A remote attacker can send a specially crafted request to the application and perform a denial of service attack.
Install update from vendor's website.
Vulnerable software versionsruby (Alpine package): 1.8.7-r0 - 2.5.5-r0
ruby (Alpine package):
External linkshttp://git.alpinelinux.org/aports/commit/?id=9f704bf9da4bdb94ea9e7bcee0259b0b5f8f937d
http://git.alpinelinux.org/aports/commit/?id=b8817649bf6c0bceb6e5ad1133c8436de4a889ab
http://git.alpinelinux.org/aports/commit/?id=fba16f258980f2a04d905339e7b167b481e8f5d6
http://git.alpinelinux.org/aports/commit/?id=b21ba46a1a4971aee0a5432e0f30b42ff7d8ccdf
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.
