Amazon Linux 2 Security Advisory: ALASECS-2023-016
Advisory Release Date: 2023-10-31 00:17 Pacific
Advisory Updated Date: 2023-11-01 00:49 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
An issue was found in libcurl which allows cookies to be inserted into a running program if specific conditions are met. The libcurl provided function, curl_easy_duphandle(), is used to duplicate the easy_handle associated with a transfer. If a duplicated transfer's easy_handle has cookies enabled when it is duplicated, the cookie-enabled state is cloned but the actual cookies are not. If the source easy_handle didn't read cookies from disk, the cloned easy_handle will attempt to read cookies from a file named 'none' in the local directory, potentially allowing arbitrary cookies to be loaded. (CVE-2023-38546)
Line directives ("//line") can be used to bypass the restrictions on "//go:cgo_" directives, allowing blocked linker and compiler flags to be passed during compilation. This can result in unexpected execution of arbitrary code when running "go build". The line directive requires the absolute path of the file in which the directive lives, which makes exploiting this issue significantly more complex. (CVE-2023-39323)
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. (CVE-2023-44487)
Affected Packages:
ecs-service-connect-agent
Note:
This advisory is applicable to Amazon Linux 2 - Ecs Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update ecs-service-connect-agent to update your system.
aarch64:
ecs-service-connect-agent-v1.27.2.0-1.amzn2.aarch64
src:
ecs-service-connect-agent-v1.27.2.0-1.amzn2.src
x86_64:
ecs-service-connect-agent-v1.27.2.0-1.amzn2.x86_64