5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.008 Low
EPSS
Percentile
81.3%
Severity: Medium
Date : 2019-03-02
CVE-ID : CVE-2019-1559
Package : openssl-1.0
Type : information disclosure
Remote : Yes
Link : https://security.archlinux.org/AVG-917
The package openssl-1.0 before version 1.0.2.r-1 is vulnerable to
information disclosure.
Upgrade to 1.0.2.r-1.
The problem has been fixed upstream in version 1.0.2.r.
None.
A padding oracle has been found in OpenSSL versions prior to 1.0.2r.
This issue does not impact OpenSSL 1.1.1 or 1.1.0. If an application
encounters a fatal protocol error and then calls SSL_shutdown() twice
(once to send a close_notify, and once to receive one) then OpenSSL can
respond differently to the calling application if a 0 byte record is
received with invalid padding compared to if a 0 byte record is
received with an invalid MAC. If the application then behaves
differently based on that in a way that is detectable to the remote
peer, then this amounts to a padding oracle that could be used to
decrypt data.
In order for this to be exploitable “non-stitched” ciphersuites must be
in use. Stitched ciphersuites are optimised implementations of certain
commonly used ciphersuites. Also the application must call
SSL_shutdown() twice even if a protocol error has occurred
(applications should not do this but some do anyway). AEAD ciphersuites
are not impacted.
A remote attacker might be able to use a padding oracle to decrypt
confidential data.
https://www.openssl.org/news/secadv/20190226.txt
https://security.archlinux.org/CVE-2019-1559
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ArchLinux | any | any | openssl-1.0 | < 1.0.2.r-1 | UNKNOWN |
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.008 Low
EPSS
Percentile
81.3%