Multiple vulnerabilities in Envoy
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2022-29225 CVE-2022-29227 CVE-2022-29228 CVE-2022-29226 CVE-2022-29224 |
| CWE-ID | CWE-400 CWE-416 CWE-119 CWE-303 CWE-476 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
envoy Server applications / IDS/IPS systems, Firewalls and proxy servers |
| Vendor | Cloud Native Computing Foundation |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Resource exhaustion
EUVDB-ID: #VU64154
Risk: Medium
CVSSv4.0: 7.7 [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:P/U:Green]
CVE-ID: CVE-2022-29225
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 application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsenvoy: 1.0.0 - 1.22.0
CPE2.3- cpe:2.3:a:cncf:envoy:1.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.19.5:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.22.0:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.8.0:*:*:*:*:*:*:*
- cpe:2.3:a:cncf:envoy:1.9.1:*:*:*:*:*:*:*
https://github.com/envoyproxy/envoy/security/advisories/GHSA-75hv-2jjj-89hh
https://github.com/envoyproxy/envoy/commit/cb4ef0b09200c720dfdb07e097092dd105450343
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
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.
2) Use-after-free
EUVDB-ID: #VU64160
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-2022-29227
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error. A remote attacker can perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsenvoy: 1.0.0 - 1.22.0
CPE2.3https://github.com/envoyproxy/envoy/security/advisories/GHSA-rm2p-qvf6-pvr6
https://github.com/envoyproxy/envoy/commit/fe7c69c248f4fe5a9080c7ccb35275b5218bb5ab
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Buffer overflow
EUVDB-ID: #VU64158
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-2022-29228
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when oauth filter calls continueDecoding(). A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsenvoy: 1.0.0 - 1.22.0
CPE2.3https://github.com/envoyproxy/envoy/security/advisories/GHSA-rww6-8h7g-8jf6
https://github.com/envoyproxy/envoy/commit/7ffda4e809dec74449ebc330cebb9d2f4ab61360
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Incorrect Implementation of Authentication Algorithm
EUVDB-ID: #VU64157
Risk: High
CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2022-29226
CWE-ID:
CWE-303 - Incorrect Implementation of Authentication Algorithm
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to to bypass authentication process.
The vulnerability exists due to the OAuth filter implementation does not include a mechanism for validating access tokens. A remote attacker can bypass the authentication.
MitigationInstall updates from vendor's website.
Vulnerable software versionsenvoy: 1.0.0 - 1.22.0
CPE2.3https://github.com/envoyproxy/envoy/commit/7ffda4e809dec74449ebc330cebb9d2f4ab61360
https://github.com/envoyproxy/envoy/security/advisories/GHSA-h45c-2f94-prxh
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) NULL pointer dereference
EUVDB-ID: #VU64155
Risk: Medium
CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-29224
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the GrpcHealthCheckerImpl. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsenvoy: 1.0.0 - 1.22.0
CPE2.3https://github.com/envoyproxy/envoy/security/advisories/GHSA-m4j9-86g3-8f49
https://github.com/envoyproxy/envoy/commit/9b1c3962172a972bc0359398af6daa3790bb59db
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
