Vulnerability Name:

CVE-2021-41585 (CCN-212718)

Assigned:2021-11-02
Published:2021-11-02
Updated:2021-11-05
Summary:Improper Input Validation vulnerability in accepting socket connections in Apache Traffic Server allows an attacker to make the server stop accepting new connections. This issue affects Apache Traffic Server 5.0.0 to 9.1.0.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: 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)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: 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)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-41585

Source: XF
Type: UNKNOWN
apache-cve202141585-dos(212718)

Source: CCN
Type: Apache Mailing List, Tuesday, November 2, 2021 5:00:25 PM
[ANNOUNCE] Apache Traffic Server is vulnerable to various smuggle, DOS, and validation attacks

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164

Source: CCN
Type: oss-sec Mailing List, Tue, 2 Nov 2021 14:25:48 -0700
Apache Traffic Server is vulnerable to various smuggle, DOS, and validation attacks

Source: CCN
Type: Apache Web site
Apache Traffic Server

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apache:traffic_server:*:*:*:*:*:*:*:* (Version >= 8.0.0 and <= 8.1.2)
  • OR cpe:/a:apache:traffic_server:*:*:*:*:*:*:*:* (Version >= 9.0.0 and <= 9.1.0)

    • Configuration CCN 1:
  • cpe:/a:apache:traffic_server:5.0.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apache traffic server *
    apache traffic server *
    apache traffic server 5.0.0