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critical9.8

CVE-2018-1000007

libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties.

Impact

libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties. When asked to send custom headers in its HTTP requests, libcurl will send that set of headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the `Location:` response header value. Sending the same set of headers to subsequent hosts is in particular a problem for applications that pass on custom `Authorization:` headers, as this header often contains privacy sensitive information or data that could allow others to impersonate the libcurl-using client's request.

Affected products

VendorProductAffected versions
HaxxCurl
from 7.1 through 7.57.0
DebianDebian Linux
Versions 7.0, 8.0, 9.0
CanonicalUbuntu Linux
Versions 12.04, 14.04, 16.04, 17.10
RedhatEnterprise Linux Desktop
Version 7.0
RedhatEnterprise Linux Server
Version 7.0
RedhatEnterprise Linux Server Aus
Version 7.4
RedhatEnterprise Linux Server Eus
Versions 7.4, 7.5
RedhatEnterprise Linux Workstation
Version 7.0
FujitsuM10-1 Firmware
before xcp2361
before xcp3070
FujitsuM10-4 Firmware
before xcp2361
before xcp3070
FujitsuM10-4s Firmware
before xcp2361
before xcp3070
FujitsuM12-1 Firmware
before xcp2361
before xcp3070

References