Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-28493 |
CWE-ID | CWE-185 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
Ubuntu Operating systems & Components / Operating system python3-jinja2 (Ubuntu package) Operating systems & Components / Operating system package or component python-jinja2 (Ubuntu package) Operating systems & Components / Operating system package or component |
Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU50430
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-28493
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 subpattern applied to untrusted input. A remote attacker can pass specially crafted data to the application and perform a regular expression DoS (ReDOS) attack.
Update the affected package jinja2 to the latest version.
Vulnerable software versionsUbuntu: 16.04
python3-jinja2 (Ubuntu package): before Ubuntu Pro (Infra-only)
python-jinja2 (Ubuntu package): before Ubuntu Pro (Infra-only)
CPE2.3https://ubuntu.com/security/notices/USN-5701-1
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.