Vulnerability Name:

CVE-2021-44540 (CCN-214893)

Assigned:2021-12-09
Published:2021-12-09
Updated:2022-01-06
Summary:A vulnerability was found in Privoxy which was fixed in get_url_spec_param() by freeing memory of compiled pattern spec before bailing.
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-401
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-44540

Source: XF
Type: UNKNOWN
privoxy-cve202144540-dos(214893)

Source: CCN
Type: oss-sec Mailing List, Thu, 9 Dec 2021 13:02:18 +0100
Multiple issues fixed in Privoxy 3.0.33 stable

Source: CCN
Type: Privoxy Web site
Privoxy

Source: MISC
Type: Broken Link, Vendor Advisory
https://www.privoxy.org/3.0.33/user-manual/whatsnew.html,

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=652b4b7cb0

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-44540

Vulnerable Configuration:Configuration 1:
  • cpe:/a:privoxy:privoxy:*:*:*:*:*:*:*:* (Version < 3.0.33)

    • Configuration CCN 1:
  • cpe:/a:privoxy:privoxy:3.0.32:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:113172
    P
    		privoxy-3.0.33-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:111190
    P
    		Security update for privoxy (Important)
    2021-12-30
    oval:org.opensuse.security:def:111530
    P
    		Security update for privoxy (Important)
    2021-12-30
    oval:org.opensuse.security:def:11165
    P
    		Security update for privoxy (Important)
    2021-12-30
    BACK
    privoxy privoxy *
    privoxy privoxy 3.0.32