Debian update for rails
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-22880 CVE-2021-22885 CVE-2021-22904 |
| CWE-ID | CWE-185 CWE-200 CWE-416 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
rails (Debian package) Operating systems & Components / Operating system package or component |
| Vendor | Debian |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Incorrect Regular Expression
EUVDB-ID: #VU50606
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22880
CWE-ID:
CWE-185 - Incorrect Regular Expression
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect regular expression for money processing format in the PostgreSQL adapter. A remote attacker can pass specially crafted input to the application and perform a regular expression denial of service (ReDOS) attack.
Update rails package to version 2:5.2.2.1+dfsg-1+deb10u3.
Vulnerable software versionsrails (Debian package): 2:5.2.2.1+dfsg-1 - 5.2.2.1+dfsg-1+deb10u2
External linkshttp://www.debian.org/security/2021/dsa-4929
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.
2) Information disclosure
EUVDB-ID: #VU53001
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22885
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to improper input validation in the Action Pack within the "redirect_to" or "polymorphic_url" helper. A remote attacker can gain unauthorized access to sensitive information on the system.
MitigationUpdate rails package to version 2:5.2.2.1+dfsg-1+deb10u3.
Vulnerable software versionsrails (Debian package): 2:5.2.2.1+dfsg-1 - 5.2.2.1+dfsg-1+deb10u2
External linkshttp://www.debian.org/security/2021/dsa-4929
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.
3) Use-after-free
EUVDB-ID: #VU53004
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22904
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in the Token Authentication logic in Action Controller. A remote attacker can send a specially crafted request and cause a denial of service condition on the target system.
MitigationUpdate rails package to version 2:5.2.2.1+dfsg-1+deb10u3.
Vulnerable software versionsrails (Debian package): 2:5.2.2.1+dfsg-1 - 5.2.2.1+dfsg-1+deb10u2
External linkshttp://www.debian.org/security/2021/dsa-4929
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.
