Input validation error in kmail - CVE-2020-11880
Published: April 17, 2020 / Updated: August 8, 2020
Vulnerability identifier: #VU34443
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-11880
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
An issue was discovered in KDE KMail before 19.12.3. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make KMail attach local files to a composed email message without showing a warning to the user, as demonstrated by an attach=.bash_history value.
Affected software
kmail
Ubuntu
kdepim (Ubuntu package)
kmail (Ubuntu package)
Ubuntu
kdepim (Ubuntu package)
kmail (Ubuntu package)
How to mitigate CVE-2020-11880
Install update from vendor's website.
kmail - update to 19.12.3
kdepim (Ubuntu package) - addressed in versions 4:4.13.3-0ubuntu0.2+esm1, 4:15.12.3-0ubuntu1.1+esm1
kmail (Ubuntu package) - addressed in versions 4:17.12.3-0ubuntu1+esm1, 4:19.12.3-0ubuntu1+esm1
kdepim (Ubuntu package) - addressed in versions 4:4.13.3-0ubuntu0.2+esm1, 4:15.12.3-0ubuntu1.1+esm1
kmail (Ubuntu package) - addressed in versions 4:17.12.3-0ubuntu1+esm1, 4:19.12.3-0ubuntu1+esm1