The remote NewStart CGSL host, running version MAIN 6.02, has curl packages installed that are affected by multiple vulnerabilities:

  - The redirect implementation in curl and libcurl 5.11 through 7.19.3, when CURLOPT_FOLLOWLOCATION is     enabled, accepts arbitrary Location values, which might allow remote HTTP servers to (1) trigger arbitrary     requests to intranet servers, (2) read or overwrite arbitrary files via a redirect to a file: URL, or (3)     execute arbitrary commands via a redirect to an scp: URL. (CVE-2009-0037)

  - The Curl_input_negotiate function in http_negotiate.c in libcurl 7.10.6 through 7.21.6, as used in curl     and other products, always performs credential delegation during GSSAPI authentication, which allows     remote servers to impersonate clients via GSSAPI requests. (CVE-2011-2192)

  - curl and libcurl 7.2x before 7.24.0 do not properly consider special characters during extraction of a     pathname from a URL, which allows remote attackers to conduct data-injection attacks via a crafted URL, as     demonstrated by a CRLF injection attack on the (1) IMAP, (2) POP3, or (3) SMTP protocol. (CVE-2012-0036)

  - Stack-based buffer overflow in the Curl_sasl_create_digest_md5_message function in lib/curl_sasl.c in curl     and libcurl 7.26.0 through 7.28.1, when negotiating SASL DIGEST-MD5 authentication, allows remote     attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long string in     the realm parameter in a (1) POP3, (2) SMTP or (3) IMAP message. (CVE-2013-0249)

  - The tailMatch function in cookie.c in cURL and libcurl before 7.30.0 does not properly match the path     domain when sending cookies, which allows remote attackers to steal cookies via a matching suffix in the     domain of a URL. (CVE-2013-1944)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Out-of-bounds read in code handling HTTP/2 trailers :

libcurl contains an out bounds read in code handling HTTP/2 trailers.
It was reported (https://github.com/curl/curl/pull/2231) that reading an HTTP/2 trailer could mess up future trailers since the stored size was one byte less than required. The problem is that the code that creates HTTP/1-like headers from the HTTP/2 trailer data once appended a string like `:` to the target buffer, while this was recently changed to `: ` (a space was added after the colon) but the following math wasn't updated correspondingly. When accessed, the data is read out of bounds and causes either a crash or that the (too large) data gets passed to client write. This could lead to a denial-of-service situation or an information disclosure if someone has a service that echoes back or uses the trailers for something. (CVE-2018-1000005)

HTTP authentication leak in redirects :

libcurl 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 subsequest 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. (CVE-2018-1000007)

- http2: fix incorrect trailer buffer size   (CVE-2018-1000005)

- http: prevent custom Authorization headers in redirects   (CVE-2018-1000007)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3554-1 advisory.

    It was discovered that curl incorrectly handled certain data. An attacker could possibly use this to cause     a denial of service or even to get access to sensitive data. This issue only affected Ubuntu 16.04 LTS and     Ubuntu 17.10.

    It was discovered that curl could accidentally leak authentication data. An attacker could possibly use     this to get access to sensitive information. (CVE-2018-1000007)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

New curl packages are available for Slackware 14.0, 14.1, 14.2, and
-current to fix security issues.

The remote host is affected by the vulnerability described in GLSA-201804-04 (cURL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in cURL. Please review the       CVE identifiers referenced below for details.
  Impact :

    Remote attackers could cause a Denial of Service condition, obtain       sensitive information, or have other unspecified impacts.
  Workaround :

    There is no known workaround at this time.

HTTP authentication leak in redirects

libcurl 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 subsequest 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. (CVE-2018-1000007)

Out-of-bounds read in code handling HTTP/2 trailers

libcurl contains an out bounds read in code handling HTTP/2 trailers.
It was reported (https://github.com/curl/curl/pull/2231) that reading an HTTP/2 trailer could mess up future trailers since the stored size was one byte less than required. The problem is that the code that creates HTTP/1-like headers from the HTTP/2 trailer data once appended a string like `:` to the target buffer, while this was recently changed to `: ` (a space was added after the colon) but the following math wasn't updated correspondingly. When accessed, the data is read out of bounds and causes either a crash or that the (too large) data gets passed to client write. This could lead to a denial-of-service situation or an information disclosure if someone has a service that echoes back or uses the trailers for something. (CVE-2018-1000005)

Two vulnerabilities were discovered in cURL, an URL transfer library.

  - CVE-2018-1000005     Zhouyihai Ding discovered an out-of-bounds read in the     code handling HTTP/2 trailers. This issue doesn't affect     the oldstable distribution (jessie).

  - CVE-2018-1000007     Craig de Stigter discovered that authentication data     might be leaked to third parties when following HTTP     redirects.

ID	Name	Product	Family	Published	Updated	Severity
206854	NewStart CGSL MAIN 6.02 : curl Multiple Vulnerabilities (NS-SA-2024-0050)	Nessus	NewStart CGSL Local Security Checks	9/10/2024	9/10/2024	critical
106930	Amazon Linux AMI : curl (ALAS-2018-951)	Nessus	Amazon Linux Local Security Checks	2/22/2018	4/18/2018	critical
106510	Fedora 27 : curl (2018-241a5a2409)	Nessus	Fedora Local Security Checks	1/31/2018	1/6/2021	critical
106558	Ubuntu 14.04 LTS / 16.04 LTS : curl vulnerabilities (USN-3554-1)	Nessus	Ubuntu Local Security Checks	2/1/2018	8/27/2024	critical
106309	Slackware 14.0 / 14.1 / 14.2 / current : curl (SSA:2018-024-01)	Nessus	Slackware Local Security Checks	1/25/2018	2/20/2018	critical
106517	Fedora 26 : curl (2018-85655b12b6)	Nessus	Fedora Local Security Checks	1/31/2018	1/6/2021	critical
108925	GLSA-201804-04 : cURL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	4/10/2018	11/12/2024	critical
109122	Amazon Linux 2 : curl (ALAS-2018-951)	Nessus	Amazon Linux Local Security Checks	4/18/2018	10/31/2024	critical
106412	Debian DSA-4098-1 : curl - security update	Nessus	Debian Local Security Checks	1/29/2018	11/13/2018	critical

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