6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.015 Low
EPSS
Percentile
86.5%
Issue Overview:
Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected.(CVE-2018-0733)
Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe.(CVE-2018-0739)
Affected Packages:
openssl
Issue Correction:
Run yum update openssl to update your system.
New Packages:
i686:
openssl-static-1.0.2k-12.110.amzn1.i686
openssl-devel-1.0.2k-12.110.amzn1.i686
openssl-perl-1.0.2k-12.110.amzn1.i686
openssl-debuginfo-1.0.2k-12.110.amzn1.i686
openssl-1.0.2k-12.110.amzn1.i686
src:
openssl-1.0.2k-12.110.amzn1.src
x86_64:
openssl-perl-1.0.2k-12.110.amzn1.x86_64
openssl-static-1.0.2k-12.110.amzn1.x86_64
openssl-devel-1.0.2k-12.110.amzn1.x86_64
openssl-debuginfo-1.0.2k-12.110.amzn1.x86_64
openssl-1.0.2k-12.110.amzn1.x86_64
Red Hat: CVE-2018-0733, CVE-2018-0739
Mitre: CVE-2018-0733, CVE-2018-0739
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | openssl-static | < 1.0.2k-12.110.amzn1 | openssl-static-1.0.2k-12.110.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssl-devel | < 1.0.2k-12.110.amzn1 | openssl-devel-1.0.2k-12.110.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssl-perl | < 1.0.2k-12.110.amzn1 | openssl-perl-1.0.2k-12.110.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssl-debuginfo | < 1.0.2k-12.110.amzn1 | openssl-debuginfo-1.0.2k-12.110.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssl | < 1.0.2k-12.110.amzn1 | openssl-1.0.2k-12.110.amzn1.i686.rpm |
Amazon Linux | 1 | x86_64 | openssl-perl | < 1.0.2k-12.110.amzn1 | openssl-perl-1.0.2k-12.110.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssl-static | < 1.0.2k-12.110.amzn1 | openssl-static-1.0.2k-12.110.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssl-devel | < 1.0.2k-12.110.amzn1 | openssl-devel-1.0.2k-12.110.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssl-debuginfo | < 1.0.2k-12.110.amzn1 | openssl-debuginfo-1.0.2k-12.110.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssl | < 1.0.2k-12.110.amzn1 | openssl-1.0.2k-12.110.amzn1.x86_64.rpm |
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.015 Low
EPSS
Percentile
86.5%