CVE-2022-32206

Summary

curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf ↗

Additional information

• NVD record
• https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdfPatch
• http://seclists.org/fulldisclosure/2022/Oct/28Advisory
• http://seclists.org/fulldisclosure/2022/Oct/41Advisory
• http://www.openwall.com/lists/oss-security/2023/02/15/3Advisory
• https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlAdvisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/Advisory
• https://security.gentoo.org/glsa/202212-01Advisory
• https://hackerone.com/reports/1570651Advisory