CVE-2017-3731

MEDIUM

Description

If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.

References

http://rhn.redhat.com/errata/RHSA-2017-0286.html

http://securityadvisories.paloaltonetworks.com/Home/Detail/82

http://www.debian.org/security/2017/dsa-3773

http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

http://www.securityfocus.com/bid/95813

http://www.securitytracker.com/id/1037717

https://access.redhat.com/errata/RHSA-2018:2185

https://access.redhat.com/errata/RHSA-2018:2186

https://access.redhat.com/errata/RHSA-2018:2187

https://github.com/openssl/openssl/commit/00d965474b22b54e4275232bc71ee0c699c5cd21

https://security.FreeBSD.org/advisories/FreeBSD-SA-17:02.openssl.asc

https://security.gentoo.org/glsa/201702-07

https://security.netapp.com/advisory/ntap-20171019-0002/

https://source.android.com/security/bulletin/pixel/2017-11-01

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us

https://www.openssl.org/news/secadv/20170126.txt

https://www.tenable.com/security/tns-2017-04

Details

Source: MITRE

Published: 2017-05-04

Updated: 2018-07-28

Type: CWE-125

Risk Information

CVSS v2.0

Base Score: 5

Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH