SUSE: CVE-2023-23916: SUSE Linux Security Advisory

SUSE: CVE-2023-23916: SUSE Linux Security Advisory

Severity

7

CVSS

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

Published

02/15/2023

Created

02/17/2023

Added

02/16/2023

Modified

01/28/2025

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.

Solution(s)

• suse-upgrade-curl
• suse-upgrade-libcurl-devel
• suse-upgrade-libcurl-devel-32bit
• suse-upgrade-libcurl4
• suse-upgrade-libcurl4-32bit

References

• https://attackerkb.com/topics/cve-2023-23916
• CVE - 2023-23916
• DSA-5365