Vulnerability Monitor

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CVE-2016-7798

The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.

Published

2017-01-30T22:59:00.747

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-326

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	ruby-lang	openssl	< 2.0.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes

References

http://www.openwall.com/lists/oss-security/2016/09/19/9 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2016/09/30/6 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2016/10/01/2 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/93031 Third Party Advisory, VDB Entry ([email protected])
https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062 Patch, Third Party Advisory ([email protected])
https://github.com/ruby/openssl/issues/49 Exploit, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html Mailing List, Third Party Advisory ([email protected])
https://www.debian.org/security/2017/dsa-3966 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2016/09/19/9 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2016/09/30/6 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2016/10/01/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/93031 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ruby/openssl/issues/49 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2017/dsa-3966 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)