Oracle Linux: CVE-2023-23916: ELSA-2023-1140: curl security update (MODERATE) (Multiple Advisories)

Oracle Linux: CVE-2023-23916: ELSA-2023-1140:curl security update (MODERATE) (Multiple Advisories)

Severity

8

CVSS

(AV:N/AC:L/Au:N/C:N/I:N/A:C)

Published

02/15/2023

Created

03/10/2023

Added

03/08/2023

Modified

01/07/2025

Description

An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors. A flaw was found in the Curl package. A malicious server can insert an unlimited number of compression steps. This decompression chain could result in out-of-memory errors.

Solution(s)

• oracle-linux-upgrade-curl
• oracle-linux-upgrade-curl-minimal
• oracle-linux-upgrade-libcurl
• oracle-linux-upgrade-libcurl-devel
• oracle-linux-upgrade-libcurl-minimal

References

• https://attackerkb.com/topics/cve-2023-23916
• CVE - 2023-23916
• ELSA-2023-1140
• ELSA-2023-1701