5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
Debian Security Advisory DSA-3299-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
July 02, 2015 https://www.debian.org/security/faq
Package : stunnel4
CVE ID : CVE-2015-3644
Debian Bug : 785352
Johan Olofsson discovered an authentication bypass vulnerability in
Stunnel, a program designed to work as an universal SSL tunnel for
network daemons. When Stunnel in server mode is used with the redirect
option and certificate-based authentication is enabled with "verify = 2"
or higher, then only the initial connection is redirected to the hosts
specified with "redirect". This allows a remote attacker to bypass
authentication.
For the stable distribution (jessie), this problem has been fixed in
version 3:5.06-2+deb8u1.
For the testing distribution (stretch), this problem has been fixed
in version 3:5.18-1.
For the unstable distribution (sid), this problem has been fixed in
version 3:5.18-1.
We recommend that you upgrade your stunnel4 packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 8 | arm64 | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_arm64.deb |
Debian | 8 | armel | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_armel.deb |
Debian | 8 | amd64 | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_amd64.deb |
Debian | 8 | all | stunnel4 | < 3:5.06-2+deb8u1 | stunnel4_3:5.06-2+deb8u1_all.deb |
Debian | 8 | mips | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_mips.deb |
Debian | 8 | ppc64el | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_ppc64el.deb |
Debian | 8 | s390x | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_s390x.deb |
Debian | 8 | kfreebsd-i386 | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_kfreebsd-i386.deb |
Debian | 8 | mipsel | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_mipsel.deb |
Debian | 8 | i386 | stunnel4 | < 5.06-2+deb8u1 | stunnel4_5.06-2+deb8u1_i386.deb |