The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.04 / 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6574-1 advisory.

    Takeshi Kaneko discovered that Go did not properly handle comments and special tags in the script context     of html/template module. An attacker could possibly use this issue to inject Javascript code and perform a     cross site scripting attack. This issue only affected Go 1.20 in Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and     Ubuntu 23.04. (CVE-2023-39318, CVE-2023-39319)

    It was discovered that Go did not properly validate the //go:cgo_ directives during compilation. An     attacker could possibly use this issue to inject arbitrary code during compile time. (CVE-2023-39323)

    It was discovered that Go did not limit the number of simultaneously executing handler goroutines in the     net/http module. An attacker could possibly use this issue to cause a panic resulting into a denial of     service. (CVE-2023-39325, CVE-2023-44487)

    It was discovered that the Go net/http module did not properly validate the chunk extensions reading from     a request or response body. An attacker could possibly use this issue to read sensitive information.
    (CVE-2023-39326)

    It was discovered that Go did not properly validate the insecure git:// protocol when using go get to     fetch a module with the .git suffix. An attacker could possibly use this issue to bypass secure protocol     checks. (CVE-2023-45285)

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.

According to the versions of the golang packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The HTTP/1 client does not fully validate the contents of the Host header. A maliciously crafted Host     header can inject additional headers or entire requests. With fix, the HTTP/1 client now refuses to send     requests containing an invalid Request.Host or Request.URL.Host value. (CVE-2023-29406)

  - The html/template package does not properly handle HTML-like '' comment tokens, nor hashbang '#!' comment     tokens, in <script> contexts. This may cause the template parser to improperly interpret the contents of     <script> contexts, causing actions to be improperly escaped. This may be leveraged to perform an XSS     attack. (CVE-2023-39318)

  - The html/template package does not apply the proper rules for handling occurrences of '<script', '<!--',     and '</script' within JS literals in <script> contexts. This may cause the template parser to improperly     consider script contexts to be terminated early, causing actions to be improperly escaped. This could be     leveraged to perform an XSS attack. (CVE-2023-39319)

  - Line directives ('//line') can be used to bypass the restrictions on '//go:cgo_' directives, allowing     blocked linker and compiler flags to be passed during compilation. This can result in unexpected execution     of arbitrary code when running 'go build'. The line directive requires the absolute path of the file in     which the directive lives, which makes exploiting this issue significantly more complex. (CVE-2023-39323)

  - A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive     server resource consumption. While the total number of requests is bounded by the     http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create     a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound     the number of simultaneously executing handler goroutines to the stream concurrency limit     (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client     has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows     too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2     for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per     HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the     Server.MaxConcurrentStreams setting and the ConfigureServer function. (CVE-2023-39325)

  - The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation     can reset many streams quickly, as exploited in the wild in August through October 2023. (CVE-2023-44487)

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

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:5009 advisory.

  - In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because     an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error. (CVE-2022-27664)

  - A use-after-free issue was discovered in Py_FindObjects() function in SciPy versions prior to 1.8.0. NOTE:
    the vendor and discoverer indicate that this is not a security issue. (CVE-2023-29824)

  - A compliance problem was found in the Red Hat OpenShift Container Platform. Red Hat discovered that, when     FIPS mode was enabled, not all of the cryptographic modules in use were FIPS-validated. (CVE-2023-3089)

  - A flaw was found in Open Virtual Network where the service monitor MAC does not properly rate limit. This     issue could allow an attacker to cause a denial of service, including on deployments with CoPP enabled and     properly configured. (CVE-2023-3153)

  - goproxy v1.1 was discovered to contain an issue which can lead to a Denial of service (DoS) via     unspecified vectors. (CVE-2023-37788)

  - The html/template package does not properly handle HTML-like  comment tokens, nor hashbang #! comment     tokens, in <script> contexts. This may cause the template parser to improperly interpret the contents of     <script> contexts, causing actions to be improperly escaped. This may be leveraged to perform an XSS     attack. (CVE-2023-39318)

  - The html/template package does not apply the proper rules for handling occurrences of <script, <!--,     and </script within JS literals in <script> contexts. This may cause the template parser to improperly     consider script contexts to be terminated early, causing actions to be improperly escaped. This could be     leveraged to perform an XSS attack. (CVE-2023-39319)

  - Processing an incomplete post-handshake message for a QUIC connection can cause a panic. (CVE-2023-39321)

  - QUIC connections do not set an upper bound on the amount of data buffered when reading post-handshake     messages, allowing a malicious QUIC connection to cause unbounded memory growth. With fix, connections now     consistently reject messages larger than 65KiB in size. (CVE-2023-39322)

  - A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive     server resource consumption. While the total number of requests is bounded by the     http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create     a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound     the number of simultaneously executing handler goroutines to the stream concurrency limit     (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client     has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows     too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2     for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per     HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the     Server.MaxConcurrentStreams setting and the ConfigureServer function. (CVE-2023-39325)

  - Text nodes not in the HTML namespace are incorrectly literally rendered, causing text which should be     escaped to not be. This could lead to an XSS attack. (CVE-2023-3978)

  - golang: net/http, x/net/http2: rapid stream resets can cause excessive work () (CVE-2023-44487)

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

ID	Name	Product	Family	Published	Updated	Severity
187937	Ubuntu 20.04 LTS / 22.04 LTS / 23.04 / 23.10 : Go vulnerabilities (USN-6574-1)	Nessus	Ubuntu Local Security Checks	1/11/2024	9/18/2024	critical
188866	EulerOS 2.0 SP9 : golang (EulerOS-SA-2023-3331)	Nessus	Huawei Local Security Checks	1/16/2024	2/9/2024	high
189423	RHCOS 4 : OpenShift Container Platform 4.14.0 (RHSA-2023:5009)	Nessus	Red Hat Local Security Checks	1/24/2024	2/9/2024	critical

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