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CVE-2022-32206

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Date: July 6, 2022

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.

Language: C

Severity Score

Related Resources (18)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/
https://support.apple.com/kb/HT213488
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-32206
https://security.netapp.com/advisory/ntap-20220915-0003/
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf
https://hackerone.com/reports/1570651
http://seclists.org/fulldisclosure/2022/Oct/28
http://seclists.org/fulldisclosure/2022/Oct/41
https://access.redhat.com/security/cve/CVE-2022-32206
https://security.gentoo.org/glsa/202212-01
https://security-tracker.debian.org/tracker/CVE-2022-32206
https://nvd.nist.gov/vuln/detail/CVE-2022-32206
https://security.alpinelinux.org/vuln/CVE-2022-32206
http://www.openwall.com/lists/oss-security/2023/02/15/3
https://www.debian.org/security/2022/dsa-5197
https://www.mend.io/vulnerability-database/CVE-2022-32206

Severity Score

Weakness Type (CWE)

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

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Upgrade to version curl-7_84_0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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