Vulnerability Name:

CVE-2021-38373 (CCN-207275)

Assigned:2021-08-02
Published:2021-08-02
Updated:2021-08-20
Summary:In KDE KMail 19.12.3 (aka 5.13.3), the SMTP STARTTLS option is not honored (and cleartext messages are sent) unless "Server requires authentication" is checked.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:W/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:W/RC:R)
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): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-77
CWE-319
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-38373

Source: CCN
Type: KDE Bugtracking System - Bug 423423
STARTTLS is ignored when "Server requires authentication" not checked in UI

Source: MISC
Type: Mailing List, Vendor Advisory
https://bugs.kde.org/show_bug.cgi?id=423423

Source: XF
Type: UNKNOWN
kde-cve202138373-info-disc(207275)

Source: CCN
Type: kmail GIT Repository
KDE KMail

Source: MISC
Type: Third Party Advisory
https://nostarttls.secvuln.info

Vulnerable Configuration:Configuration 1:
  • cpe:/a:kde:kmail:19.12.3:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:kde:kmail:19.12.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    kde kmail 19.12.3
    kde kmail 19.12.3