VMware Tanzu products update for curl
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-22898 CVE-2021-22925 CVE-2022-43552 |
| CWE-ID | CWE-457 CWE-416 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
VMware Tanzu Application Service for VMs Server applications / Other server solutions Isolation Segment Server applications / Other server solutions VMware Tanzu Operations Manager Server applications / Virtualization software |
| Vendor | VMware, Inc |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Use of uninitialized variable
EUVDB-ID: #VU53587
Risk: Medium
CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22898
CWE-ID:
CWE-457 - Use of Uninitialized Variable
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to usage of uninitialized variable in code, responsible for processing TELNET requests when parsing NEW_ENV variables. A remote attacker can force the affected application to connect to a telnet server under attackers control and read up to 1800 bytes from the uninitialized memory on the libcurl client system.
Proof of concept:
curl telnet://example.com -tNEW_ENV=a,bbbbbb (256 'b's)Install updates from vendor's website.
Vulnerable software versionsVMware Tanzu Application Service for VMs: All versions
Isolation Segment: All versions
VMware Tanzu Operations Manager: before 2.10.55
External linkshttp://tanzu.vmware.com/security/usn-5894-1
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.
2) Use of Uninitialized Variable
EUVDB-ID: #VU55149
Risk: Medium
CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22925
CWE-ID:
CWE-457 - Use of Uninitialized Variable
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to usage of uninitialized variable in code, responsible for processing TELNET requests when parsing NEW_ENV variables. A remote attacker can force the affected application to connect to a telnet server under attackers control and read up to 1800 bytes from the uninitialized memory on the libcurl client system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsVMware Tanzu Application Service for VMs: All versions
Isolation Segment: All versions
VMware Tanzu Operations Manager: before 2.10.55
External linkshttp://tanzu.vmware.com/security/usn-5894-1
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.
3) Use-after-free
EUVDB-ID: #VU70456
Risk: Low
CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-43552
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 while processing denied requests from HTTP proxies when using SMB or TELNET protocols. A remote attacker can trigger a use-after-free error and crash the application.
Install updates from vendor's website.
Vulnerable software versionsVMware Tanzu Application Service for VMs: All versions
Isolation Segment: All versions
VMware Tanzu Operations Manager: before 2.10.55
External linkshttp://tanzu.vmware.com/security/usn-5894-1
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.
