Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2021-20270 CVE-2021-27291 |
CWE-ID | CWE-835 CWE-399 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system python3-pygments (Ubuntu package) Operating systems & Components / Operating system package or component python-pygments (Ubuntu package) Operating systems & Components / Operating system package or component |
Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU51449
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20270
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop. A remote attacker can consume all available system resources and cause denial of service conditions.
MitigationUpdate the affected package pygments to the latest version.
Vulnerable software versionsUbuntu: 14.04
python3-pygments (Ubuntu package): before Ubuntu Pro
python-pygments (Ubuntu package): before Ubuntu Pro
External linkshttp://ubuntu.com/security/notices/USN-4897-2
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.
EUVDB-ID: #VU51776
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-2021-27291
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (ReDoS) attack.
The vulnerability exists due to improper management of internal resources within the application. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDoS) attack.
MitigationUpdate the affected package pygments to the latest version.
Vulnerable software versionsUbuntu: 14.04
python3-pygments (Ubuntu package): before Ubuntu Pro
python-pygments (Ubuntu package): before Ubuntu Pro
External linkshttp://ubuntu.com/security/notices/USN-4897-2
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.