Fedora 33 Modular update for nodejs
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2019-9516 CVE-2020-8265 CVE-2020-8287 |
| CWE-ID | CWE-400 CWE-416 CWE-444 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #3 is available. |
| Vulnerable software |
Fedora Operating systems & Components / Operating system nodejs Operating systems & Components / Operating system package or component |
| Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Resource exhaustion
EUVDB-ID: #VU20198
Risk: Medium
CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2019-9516
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation when processing HTTP/2 requests within the ngx_http_v2_module module. A remote attacker can send a specially crafted HTTP/2 request the affected server, consume all available CPU resources and perform a denial of service (DoS) attack.
Successful exploitation of the vulnerability requires that support for HTTP/2 is enabled.
Install updates from vendor's repository.
Vulnerable software versionsFedora: 33
nodejs: before 12-3320210105181808.601d93de
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-MODULAR-2021-7ae7b118a8
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) Use-after-free
EUVDB-ID: #VU49254
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-2020-8265
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a DoS attack..
The vulnerability exists due to a use-after-free error in TLSWrap within the TLS implementation. A remote attacker can send specially crafted data to the service and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsFedora: 33
nodejs: before 12-3320210105181808.601d93de
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-MODULAR-2021-7ae7b118a8
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) HTTP request smuggling
EUVDB-ID: #VU49253
Risk: Medium
CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2020-8287
CWE-ID:
CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to preform HTTP request smuggling attacks.
The vulnerability exists due to improper validation of HTTP requests. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.
Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 33
nodejs: before 12-3320210105181808.601d93de
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-MODULAR-2021-7ae7b118a8
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. However, proof of concept for this vulnerability is available.
