Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Debian / debian_linux10.0 – 10.0
- Debian / debian_linux11.0 – 11.0
- fedoraproject / fedora35 – 35
- haxx / curl7.84.0
- NetApp / bootstrap_os
- NetApp / Clustered Data ONTAP
- NetApp / element_software
- NetApp / h300s_firmware
- NetApp / h410s_firmware
- NetApp / h500s_firmware
- NetApp / h700s_firmware
- NetApp / hci_management_node
- NetApp / solidfire
- Siemens / scalance_sc622-2c_firmware3.0
- Siemens / scalance_sc626-2c_firmware3.0
- Siemens / scalance_sc632-2c_firmware3.0
- Siemens / scalance_sc636-2c_firmware3.0
- Siemens / scalance_sc642-2c_firmware3.0
- Siemens / scalance_sc646-2c_firmware3.0
- Splunk / Universal Forwarder8.2.0 – 8.2.12
- Splunk / Universal Forwarder9.1.0 – 9.1.0
References
- MISChttps://hackerone.com/reports/1570651
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/
- VENDOR_ADVISORYhttps://www.debian.org/security/2022/dsa-5197
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2022/08/msg00017.html
- MISChttps://security.netapp.com/advisory/ntap-20220915-0003/
- VENDOR_ADVISORYhttps://support.apple.com/kb/HT213488
- MAILING_LISThttp://seclists.org/fulldisclosure/2022/Oct/41
- MAILING_LISThttp://seclists.org/fulldisclosure/2022/Oct/28
- MISChttps://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf
- MISChttps://security.gentoo.org/glsa/202212-01
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/02/15/3
Updated 15m ago · 8 sources