Detections
Analytics
Amazon Linux AMI : openssl (ALAS-2018-1065)
medium Nessus Plugin ID 112092
Language:
Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
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)
Solution
Run 'yum update openssl' to update your system.See Also
Plugin Details
Severity: Medium
ID: 112092
File Name: ala_ALAS-2018-1065.nasl
Version: 1.2
Type: local
Agent: unix
Published: 8/24/2018
Updated: 8/31/2018
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:openssl, p-cpe:/a:amazon:linux:openssl-debuginfo, p-cpe:/a:amazon:linux:openssl-devel, p-cpe:/a:amazon:linux:openssl-perl, p-cpe:/a:amazon:linux:openssl-static, cpe:/o:amazon:linux
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Patch Publication Date: 8/22/2018
Reference Information
CVE: CVE-2018-0733, CVE-2018-0739
ALAS: 2018-1065