KAuth contains a logic flaw in which the service invoking dbus is not properly checked. This allows spoofing the identity of the caller and with some carefully crafted calls can lead to gaining root from an unprivileged account.

Affected versions: kauth < 5.34, kdelibs < 4.14.32

Upstream patches:

kauth: https://commits.kde.org/kauth/df875f725293af53399f5146362eb158b4f9216a kdelibs: https://commits.kde.org/kdelibs/264e97625abe2e0334f97de17f6ffb52582888ab

External References:

https://www.kde.org/info/security/advisory-20170510-1.txt http://seclists.org/oss-sec/2017/q2/240

kpac/script.cpp in KDE kio before 5.32 and kdelibs before 4.14.30 calls the PAC FindProxyForURL function with a full https URL (potentially including Basic Authentication credentials, a query string, or PATHINFO), which allows remote attackers to obtain sensitive information via a crafted PAC file.

kio/kio/tcpslavebase.cpp in KDE KSSL in kdelibs before 4.6.1 does not properly verify that the server hostname matches the domain name of the subject of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a certificate issued by a legitimate Certification Authority for an IP address, a different vulnerability than CVE-2009-2702.

Konqueror 3.3.1 allows remote attackers to execute arbitrary FTP commands via an ftp:// URL that contains a URL-encoded newline ("%0a") before the FTP command, which causes the commands to be inserted into the resulting FTP session, as demonstrated using a PORT command.