A vulnerability in the proxy service of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management in the proxy service of an affected device. An attacker could exploit this vulnerability by establishing a large number of HTTPS connections to the affected device. A successful exploit could allow the attacker to cause the system to stop processing new connections, which could result in a DoS condition. Note: Manual intervention may be required to recover from this situation.
References
| Link | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-dos-fmHdKswk | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
|
History
14 Oct 2021, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 7.8
v3 : 7.5 |
| CWE | CWE-401 | |
| CPE | cpe:2.3:h:cisco:web_security_appliance_s170:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:web_security_appliance_s390:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:web_security_appliance_s680:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:web_security_appliance_s380:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:web_security_appliance_s190:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:web_security_appliance_s690:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:web_security_appliance_s690x:-:*:*:*:*:*:*:* cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* |
|
| References | (CISCO) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-dos-fmHdKswk - Vendor Advisory |
06 Oct 2021, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-10-06 20:15
Updated : 2023-12-10 14:09
NVD link : CVE-2021-34698
Mitre link : CVE-2021-34698
CVE.ORG link : CVE-2021-34698
JSON object : View
Products Affected
cisco
- web_security_appliance_s170
- web_security_appliance_s690x
- web_security_appliance_s380
- asyncos
- web_security_appliance_s680
- web_security_appliance_s390
- web_security_appliance_s190
- web_security_appliance_s690
CWE
CWE-401
Missing Release of Memory after Effective Lifetime