GnuTLS before 2017-02-20 has an out-of-bounds write caused by an integer overflow and heap-based buffer overflow related to the cdk_pkt_read function in opencdk/read-packet.c. This issue (which is a subset of the vendor's GNUTLS-SA-2017-3 report) is fixed in 3.5.10.

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2017-2203:01 advisory.

    GnuTLS is a secure communications library implementing the SSL, TLS and DTLS     protocols and technologies around them. It provides a simple C language     application programming interface (API) to access the secure communications     protocols as well as APIs to parse and write X.509, PKCS #12, OpenPGP and     other required structures.
    CVE-2016-7444     The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS     before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length     of an OCSP response, which might allow remote attackers to bypass an     intended certificate validation mechanism via vectors involving     trailing bytes left by gnutls_malloc.
    CVE-2017-5334     Double free vulnerability in the gnutls_x509_ext_import_proxy function     in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers     to have unspecified impact via crafted policy language information in     an X.509 certificate with a Proxy Certificate Information extension.
    CVE-2017-5335     The stream reading functions in lib/opencdk/read-packet.c in GnuTLS     before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to cause a     denial of service (out-of-memory error and crash) via a crafted     OpenPGP certificate.
    CVE-2017-5336     Stack-based buffer overflow in the cdk_pk_get_keyid function in     lib/opencdk/pubkey.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8     allows remote attackers to have unspecified impact via a crafted     OpenPGP certificate.
    CVE-2017-5337     Multiple heap-based buffer overflows in the read_attribute function in     GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to     have unspecified impact via a crafted OpenPGP certificate.
    CVE-2017-7507     GnuTLS version 3.5.12 and earlier is vulnerable to a NULL pointer     dereference while decoding a status response TLS extension with valid     contents. This could lead to a crash of the GnuTLS server application.
    CVE-2017-7869     GnuTLS before 2017-02-20 has an out-of-bounds write caused by an     integer overflow and heap-based buffer overflow related to the     cdk_pkt_read function in opencdk/read-packet.c. This issue (which is a     subset of the vendor's GNUTLS-SA-2017-3 report) is fixed in 3.5.10.

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

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - GnuTLS before 2017-02-20 has an out-of-bounds write caused by an integer overflow and heap-based buffer     overflow related to the cdk_pkt_read function in opencdk/read-packet.c. This issue (which is a subset of     the vendor's GNUTLS-SA-2017-3 report) is fixed in 3.5.10. (CVE-2017-7869)

Note that Nessus relies on the presence of the package as reported by the vendor.

An update of the gnutls package has been released.

An update for gnutls is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS.

The following packages have been upgraded to a later upstream version:
gnutls (3.3.26). (BZ#1378373)

Security Fix(es) :

* A double-free flaw was found in the way GnuTLS parsed certain X.509 certificates with Proxy Certificate Information extension. An attacker could create a specially crafted certificate which, when processed by an application compiled against GnuTLS, could cause that application to crash. (CVE-2017-5334)

* Multiple flaws were found in the way gnutls processed OpenPGP certificates. An attacker could create specially crafted OpenPGP certificates which, when parsed by gnutls, would cause it to crash.
(CVE-2017-5335, CVE-2017-5336, CVE-2017-5337, CVE-2017-7869)

* A NULL pointer dereference flaw was found in the way GnuTLS processed ClientHello messages with status_request extension. A remote attacker could use this flaw to cause an application compiled with GnuTLS to crash. (CVE-2017-7507)

* A flaw was found in the way GnuTLS validated certificates using OCSP responses. This could falsely report a certificate as valid under certain circumstances. (CVE-2016-7444)

The CVE-2017-7507 issue was discovered by Hubert Kario (Red Hat QE BaseOS Security team).

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.

The following packages have been upgraded to a later upstream version:
gnutls (3.3.26).

Security Fix(es) :

  - A double-free flaw was found in the way GnuTLS parsed     certain X.509 certificates with Proxy Certificate     Information extension. An attacker could create a     specially crafted certificate which, when processed by     an application compiled against GnuTLS, could cause that     application to crash. (CVE-2017-5334)

  - Multiple flaws were found in the way gnutls processed     OpenPGP certificates. An attacker could create specially     crafted OpenPGP certificates which, when parsed by     gnutls, would cause it to crash. (CVE-2017-5335,     CVE-2017-5336, CVE-2017-5337, CVE-2017-7869)

  - A NULL pointer dereference flaw was found in the way     GnuTLS processed ClientHello messages with     status_request extension. A remote attacker could use     this flaw to cause an application compiled with GnuTLS     to crash. (CVE-2017-7507)

  - A flaw was found in the way GnuTLS validated     certificates using OCSP responses. This could falsely     report a certificate as valid under certain     circumstances. (CVE-2016-7444)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-2292 advisory.

    - Address crash in OCSP status request extension, by eliminating the       unneeded parsing (CVE-2017-7507, #1455828)

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

Note that Nessus has not tested for these issues 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 multiple vulnerabilities as referenced in the RHSA-2017:2292 advisory.

    The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements     cryptographic algorithms and protocols such as SSL, TLS, and DTLS.

    The following packages have been upgraded to a later upstream version: gnutls (3.3.26). (BZ#1378373)

    Security Fix(es):

    * A double-free flaw was found in the way GnuTLS parsed certain X.509 certificates with Proxy Certificate     Information extension. An attacker could create a specially-crafted certificate which, when processed by     an application compiled against GnuTLS, could cause that application to crash. (CVE-2017-5334)

    * Multiple flaws were found in the way gnutls processed OpenPGP certificates. An attacker could create     specially crafted OpenPGP certificates which, when parsed by gnutls, would cause it to crash.
    (CVE-2017-5335, CVE-2017-5336, CVE-2017-5337, CVE-2017-7869)

    * A null pointer dereference flaw was found in the way GnuTLS processed ClientHello messages with     status_request extension. A remote attacker could use this flaw to cause an application compiled with     GnuTLS to crash. (CVE-2017-7507)

    * A flaw was found in the way GnuTLS validated certificates using OCSP responses. This could falsely     report a certificate as valid under certain circumstances. (CVE-2016-7444)

    The CVE-2017-7507 issue was discovered by Hubert Kario (Red Hat QE BaseOS Security team).

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes     linked from 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 these issues but has instead relied only on the application's self-reported version number.

This update for gnutls fixes the following issues :

  - GNUTLS-SA-2017-3 / CVE-2017-7869: An out-of-bounds write     in OpenPGP certificate decoding was fixed (bsc#1034173)

  - CVE-2017-6891: A potential stack-based buffer overflow     in the bundled libtasn1 was fixed (bsc#1040621)

  - An address read of 4 bytes past the end of buffer in     OpenPGP certificate parsing was fixed (bsc#1038337)

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

This update for gnutls fixes the following issues :

  - GNUTLS-SA-2017-4 / CVE-2017-7507: Fix crash in status     response TLS extension decoding (bsc#1043398)

  - GNUTLS-SA-2017-3 / CVE-2017-7869: Fix out-of-bounds     write in OpenPGP certificate decoding (bsc#1034173)

  - Address read of 4 bytes past the end of buffer in     OpenPGP certificate parsing (bsc#1038337)

This update was imported from the SUSE:SLE-12:Update update project.

This update for gnutls fixes the following issues :

  - GNUTLS-SA-2017-4 / CVE-2017-7507: Fix crash in status     response TLS extension decoding (bsc#1043398)

  - GNUTLS-SA-2017-3 / CVE-2017-7869: Fix out-of-bounds     write in OpenPGP certificate decoding (bsc#1034173)

  - Address read of 4 bytes past the end of buffer in     OpenPGP certificate parsing (bsc#1038337)

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

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

  - GnuTLS before 2017-02-20 has an out-of-bounds write     caused by an integer overflow and heap-based buffer     overflow related to the cdk_pkt_read function in     opencdk/read-packet.c. This issue (which is a subset of     the vendor's GNUTLS-SA-2017-3 report) is fixed in     3.5.10.i1/4^CVE-2017-7869i1/4%0

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 Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3318-1 advisory.

    Hubert Kario discovered that GnuTLS incorrectly handled decoding a status response TLS extension. A remote     attacker could possibly use this issue to cause GnuTLS to crash, resulting in a denial of service. This     issue only applied to Ubuntu 16.04 LTS, Ubuntu 16.10 and Ubuntu 17.04. (CVE-2017-7507)

    It was discovered that GnuTLS incorrectly handled decoding certain OpenPGP certificates. A remote attacker     could use this issue to cause GnuTLS to crash, resulting in a denial of service, or possibly execute     arbitrary code. (CVE-2017-7869)

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

  - GnuTLS before 2017-02-20 has an out-of-bounds write     caused by an integer overflow and heap-based buffer     overflow related to the cdk_pkt_read function in     opencdk/read-packet.c. This issue (which is a subset of     the vendor's GNUTLS-SA-2017-3 report) is fixed in     3.5.10.(CVE-2017-7869)

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.

ID	Name	Product	Family	Type	Severity
289308	MiracleLinux 7 : gnutls-3.3.26-9.el7 (AXSA:2017-2203:01)	Nessus	Miracle Linux Local Security Checks	Local	critical
221593	Linux Distros Unpatched Vulnerability : CVE-2017-7869	Nessus	Misc.	Local	high
121691	Photon OS 1.0: Gnutls PHSA-2017-0016	Nessus	PhotonOS Local Security Checks	Local	high
102759	CentOS 7 : gnutls (CESA-2017:2292)	Nessus	CentOS Local Security Checks	Local	critical
102642	Scientific Linux Security Update : gnutls on SL7.x x86_64 (20170801)	Nessus	Scientific Linux Local Security Checks	Local	critical
102303	Oracle Linux 7 : gnutls (ELSA-2017-2292)	Nessus	Oracle Linux Local Security Checks	Local	critical
102116	RHEL 7 : gnutls (RHSA-2017:2292)	Nessus	Red Hat Local Security Checks	Local	critical
101768	SUSE SLES11 Security Update : gnutls (SUSE-SU-2017:1886-1)	Nessus	SuSE Local Security Checks	Local	high
101759	openSUSE Security Update : gnutls (openSUSE-2017-824)	Nessus	SuSE Local Security Checks	Local	high
101393	SUSE SLED12 / SLES12 Security Update : gnutls (SUSE-SU-2017:1838-1)	Nessus	SuSE Local Security Checks	Local	high
101306	EulerOS 2.0 SP1 : gnutls (EulerOS-SA-2017-1115)	Nessus	Huawei Local Security Checks	Local	high
100781	Ubuntu 14.04 LTS / 16.04 LTS : GnuTLS vulnerabilities (USN-3318-1)	Nessus	Ubuntu Local Security Checks	Local	high
100722	EulerOS 2.0 SP2 : gnutls (EulerOS-SA-2017-1111)	Nessus	Huawei Local Security Checks	Local	high

Detections

Analytics

CVE-2017-7869

high

Tenable Plugins

critical

high

high

critical

critical

critical

critical

high

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