Security Bulletin: cURL libcurl vulnerabilites impacting Aspera High-Speed Transfer Server, Aspera High-Speed Transfer Endpoint, Aspera Desktop Client 4.0 and earlier (CVE-2020-8284, CVE-2020-8286, CVE-2020-8285)

Summary

The cURL libcurl vulnerabilities CVE-2020-8284, CVE-2020-8286 and CVE-2020-8285 impacts Aspera High-Speed Transfer Server, Aspera High-Speed Transfer Endpoint, and Aspera Desktop Client 4.0.0 and earlier. The fix is delivered in Aspera High-Speed Transfer Server, Aspera High-Speed Transfer Endpoint, and Aspera Desktop Client 4.1.0.

Vulnerability Details

CVEID:CVE-2020-8284
**DESCRIPTION:**cURL libcurl could allow a remote attacker to obtain sensitive information, caused by improper validation of FTP PASV responses. By persuading a victim to connect a specially-crafted server, an attacker could exploit this vulnerability to obtain sensitive information about services, and use this information to launch further attacks against the affected system.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/192854 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)

CVEID:CVE-2020-8286
**DESCRIPTION:**cURL libcurl could allow a remote attacker to bypass security restrictions, caused by improper OCSP response verification. By sending a specially-crafted request, an attacker could exploit this vulnerability to breach a TLS server.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/192856 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

CVEID:CVE-2020-8285
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by a stack-based buffer overflow in the wildcard matching function. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/192855 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

Workarounds and Mitigations

None