Detections
Analytics
Amazon Linux AMI : curl (ALAS-2019-1148)
critical Nessus Plugin ID 121369
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Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
A heap use-after-free flaw was found in curl related to closing an easy handle. When closing and cleaning up an 'easy' handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct.(CVE-2018-16840)
Curl is vulnerable to a buffer overrun in the SASL authentication code that may lead to denial of service. (CVE-2018-16839)
Curl is vulnerable to a heap-based buffer over-read in the tool_msgs.c:voutf() function that may result in information exposure and denial of service. (CVE-2018-16842)
Solution
Run 'yum update curl' to update your system.See Also
Plugin Details
Severity: Critical
ID: 121369
File Name: ala_ALAS-2019-1148.nasl
Version: 1.2
Type: local
Agent: unix
Published: 1/25/2019
Updated: 2/20/2020
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:curl, p-cpe:/a:amazon:linux:curl-debuginfo, p-cpe:/a:amazon:linux:libcurl, p-cpe:/a:amazon:linux:libcurl-devel, cpe:/o:amazon:linux
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 1/25/2019
Vulnerability Publication Date: 10/31/2018
Reference Information
CVE: CVE-2018-16839, CVE-2018-16840, CVE-2018-16842
ALAS: 2019-1148