The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2758 advisory.

    Nettle is a cryptographic library that is designed to fit easily in almost any context: In crypto toolkits     for object-oriented languages, such as C++, Python, or Pike, in applications like LSH or GNUPG, or even in     kernel space.

    Security Fix(es):

    * nettle: Out of bounds memory access in signature verification (CVE-2021-20305)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2760 advisory.

    Nettle is a cryptographic library that is designed to fit easily in almost any context: In crypto toolkits     for object-oriented languages, such as C++, Python, or Pike, in applications like LSH or GNUPG, or even in     kernel space.

    Security Fix(es):

    * nettle: Out of bounds memory access in signature verification (CVE-2021-20305)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

This update for libnettle fixes the following issues :

  - CVE-2021-20305: Fixed the multiply function which was     being called with out-of-range scalars (bsc#1184401).

This update was imported from the SUSE:SLE-15:Update update project.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2356 advisory.

    Nettle is a cryptographic library that is designed to fit easily in almost any context: In crypto toolkits     for object-oriented languages, such as C++, Python, or Pike, in applications like LSH or GNUPG, or even in     kernel space.

    Security Fix(es):

    * nettle: Out of bounds memory access in signature verification (CVE-2021-20305)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The version of AOS installed on the remote host is prior to 6.0. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-6.0 advisory.

  - encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write     access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character     sequence. (CVE-2021-26937)

  - Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow     unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.
    (CVE-2017-5715)

  - Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized     disclosure of information to an attacker with local user access via a side-channel analysis.
    (CVE-2017-5753)

  - Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow     unauthorized disclosure of information to an attacker with local user access via a side-channel analysis     of the data cache. (CVE-2017-5754)

  - Vulnerability in the Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition product of Oracle Java     SE (component: Libraries). Supported versions that are affected are Java SE: 7u291, 8u281, 11.0.10, 16;
    Java SE Embedded: 8u281; Oracle GraalVM Enterprise Edition: 19.3.5, 20.3.1.2 and 21.0.0.2. Difficult to     exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to     compromise Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition. Successful attacks require human     interaction from a person other than the attacker. Successful attacks of this vulnerability can result in     unauthorized creation, deletion or modification access to critical data or all Java SE, Java SE Embedded,     Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments     that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox     for security. (CVE-2021-2163)

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

The version of AOS installed on the remote host is prior to 6.1. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-6.1 advisory.

  - xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and     watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows     remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory     corruption) via a crafted XML document. (CVE-2016-4658)

  - NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow     when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures     encoded within CMS, S/MIME, PKCS \#7, or PKCS \#12 are likely to be impacted. Applications using NSS for     certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how     they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and     PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and     Evince are believed to be impacted. This vulnerability affects NSS < 3.73 and NSS < 3.68.1.
    (CVE-2021-43527)

  - Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow     unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.
    (CVE-2017-5715)

  - Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized     disclosure of information to an attacker with local user access via a side-channel analysis.
    (CVE-2017-5753)

  - Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow     unauthorized disclosure of information to an attacker with local user access via a side-channel analysis     of the data cache. (CVE-2017-5754)

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

An update of the nettle package has been released.

According to the version of the nettle packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - A flaw was found in Nettle in versions before 3.7.2,     where several Nettle signature verification functions     (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve     Cryptography point (ECC) multiply function being called     with out-of-range scalers, possibly resulting in     incorrect results. This flaw allows an attacker to     force an invalid signature, causing an assertion     failure or possible validation. The highest threat to     this vulnerability is to confidentiality, integrity, as     well as system availability.(CVE-2021-20305)

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 version of AHV installed on the remote host is prior to 20201105.2030. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-20201105.2030 advisory.

  - encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write     access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character     sequence. (CVE-2021-26937)

  - A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions     (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being     called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to     force an invalid signature, causing an assertion failure or possible validation. The highest threat to     this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-20305)

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

The version of AOS installed on the remote host is prior to 5.15.5.5. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.15.5.5 advisory.

  - encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write     access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character     sequence. (CVE-2021-26937)

  - Vulnerability in the Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition product of Oracle Java     SE (component: Libraries). Supported versions that are affected are Java SE: 7u291, 8u281, 11.0.10, 16;
    Java SE Embedded: 8u281; Oracle GraalVM Enterprise Edition: 19.3.5, 20.3.1.2 and 21.0.0.2. Difficult to     exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to     compromise Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition. Successful attacks require human     interaction from a person other than the attacker. Successful attacks of this vulnerability can result in     unauthorized creation, deletion or modification access to critical data or all Java SE, Java SE Embedded,     Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments     that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox     for security. (CVE-2021-2163)

  - In the Linux kernel before 5.3.9, there are multiple out-of-bounds write bugs that can be caused by a     malicious USB device in the Linux kernel HID drivers, aka CID-d9d4b1e46d95. This affects drivers/hid/hid-     axff.c, drivers/hid/hid-dr.c, drivers/hid/hid-emsff.c, drivers/hid/hid-gaff.c, drivers/hid/hid-holtekff.c,     drivers/hid/hid-lg2ff.c, drivers/hid/hid-lg3ff.c, drivers/hid/hid-lg4ff.c, drivers/hid/hid-lgff.c,     drivers/hid/hid-logitech-hidpp.c, drivers/hid/hid-microsoft.c, drivers/hid/hid-sony.c, drivers/hid/hid-     tmff.c, and drivers/hid/hid-zpff.c. (CVE-2019-19532)

  - In create_pinctrl of core.c, there is a possible out of bounds read due to a use after free. This could     lead to local information disclosure with no additional execution privileges needed. User interaction is     not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-140550171     (CVE-2020-0427)

  - A flaw was found in the Linux kernel. A use-after-free memory flaw was found in the perf subsystem     allowing a local attacker with permission to monitor perf events to corrupt memory and possibly escalate     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2020-14351)

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

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4906-1 advisory.

    It was discovered that Nettle incorrectly handled signature verification. A remote attacker could use this     issue to cause Nettle to crash, resulting in a denial of service, or possibly force invalid signatures.

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

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

ID	名前	製品	ファミリー	公開日	更新日	深刻度
151675	RHEL 7 : nettle (RHSA-2021:2758)	Nessus	Red Hat Local Security Checks	2021/7/15	2024/11/7	high
151811	RHEL 7 : nettle (RHSA-2021:2760)	Nessus	Red Hat Local Security Checks	2021/7/19	2024/11/7	high
149580	openSUSE Security Update : libnettle (openSUSE-2021-635)	Nessus	SuSE Local Security Checks	2021/5/18	2024/1/1	high
150421	RHEL 7 : nettle (RHSA-2021:2356)	Nessus	Red Hat Local Security Checks	2021/6/9	2024/11/7	high
164597	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-6.0)	Nessus	Misc.	2022/9/1	2025/2/17	medium
164603	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-6.1)	Nessus	Misc.	2022/9/1	2026/7/24	high
148904	Photon OS 1.0: Nettle PHSA-2021-1.0-0383	Nessus	PhotonOS Local Security Checks	2021/4/21	2024/7/22	high
148907	Photon OS 3.0: Nettle PHSA-2021-3.0-0223	Nessus	PhotonOS Local Security Checks	2021/4/21	2025/8/22	high
152400	EulerOS 2.0 SP8 : nettle (EulerOS-SA-2021-2307)	Nessus	Huawei Local Security Checks	2021/8/10	2023/12/4	high
164554	Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-20201105.2030)	Nessus	Misc.	2022/9/1	2025/2/17	critical
164590	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.15.5.5)	Nessus	Misc.	2022/9/1	2025/7/22	critical
148491	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Nettle vulnerability (USN-4906-1)	Nessus	Ubuntu Local Security Checks	2021/4/14	2024/8/27	high

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