The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2554-1 advisory.

    Daniel Genkin, Lev Pachmanov, Itamar Pipman, and Eran Tromer discovered that GnuPG was susceptible to an     attack via physical side channels. A local attacker could use this attack to possibly recover private     keys. (CVE-2014-3591)

    Daniel Genkin, Adi Shamir, and Eran Tromer discovered that GnuPG was susceptible to an attack via physical     side channels. A local attacker could use this attack to possibly recover private keys. (CVE-2015-0837)

    Hanno Bck discovered that GnuPG incorrectly handled certain malformed keyrings. If a user or automated     system were tricked into opening a malformed keyring, a remote attacker could use this issue to cause     GnuPG to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-1606,     CVE-2015-1607)

    In addition, this update improves GnuPG security by validating that the keys returned by keyservers match     those requested.

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.

Daniel Genkin, Adi Shamir, and Eran Tromer discovered that GnuPG was susceptible to an adaptive chosen ciphertext attack via physical side channels. A local attacker could use this attack to possibly recover private keys.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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 host has packages installed that are affected by a vulnerability as referenced in the USN-2339-2 advisory.

    Daniel Genkin, Adi Shamir, and Eran Tromer discovered that Libgcrypt was susceptible to an adaptive chosen     ciphertext attack via physical side channels. A local attacker could use this attack to possibly recover     private keys.

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.

Updated libgcrypt packages fix security vulnerability :

The libgcrypt library before version 1.5.4 is vulnerable to an ELGAMAL side-channel attack (CVE-2014-5270).

Daniel Genkin, Itamar Pipman and Eran Tromer discovered that Elgamal encryption subkeys in applications using the libgcrypt11 library, for example GnuPG 2.x, could be leaked via a side-channel attack (see http://www.cs.tau.ac.il/~tromer/handsoff/).

This is fixed in Squeeze in version 1.4.5-2+squeeze2.

We recommend that you upgrade your libgcrypt11 packages.

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

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

  - Libgcrypt before 1.5.4, as used in GnuPG and other     products, does not properly perform ciphertext     normalization and ciphertext randomization, which makes     it easier for physically proximate attackers to conduct     key-extraction attacks by leveraging the ability to     collect voltage data from exposed metal, a different     vector than CVE-2013-4576.(CVE-2014-5270)

  - libgcrypt before version 1.7.8 is vulnerable to a cache     side-channel attack resulting into a complete break of     RSA-1024 while using the left-to-right method for     computing the sliding-window expansion. The same attack     is believed to work on RSA-2048 with moderately more     computation. This side-channel requires that attacker     can run arbitrary software on the hardware where the     private RSA key is used.(CVE-2017-7526)

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	名称	产品	系列	发布时间	最近更新时间	严重程度
82526	Ubuntu 14.04 LTS : GnuPG vulnerabilities (USN-2554-1)	Nessus	Ubuntu Local Security Checks	2015/4/2	2024/8/28	medium
77526	Ubuntu 10.04 LTS / 12.04 LTS : gnupg vulnerability (USN-2339-1)	Nessus	Ubuntu Local Security Checks	2014/9/4	2021/1/19	low
77527	Ubuntu 14.04 LTS : Libgcrypt vulnerability (USN-2339-2)	Nessus	Ubuntu Local Security Checks	2014/9/4	2024/8/27	high
77655	Mandriva Linux Security Advisory : libgcrypt (MDVSA-2014:176)	Nessus	Mandriva Local Security Checks	2014/9/12	2021/1/6	low
82238	Debian DLA-93-1 : libgcrypt11 security update	Nessus	Debian Local Security Checks	2015/3/26	2021/1/11	low
129199	EulerOS 2.0 SP3 : libgcrypt (EulerOS-SA-2019-2006)	Nessus	Huawei Local Security Checks	2019/9/24	2025/2/24	medium
130667	EulerOS 2.0 SP5 : libgcrypt (EulerOS-SA-2019-2205)	Nessus	Huawei Local Security Checks	2019/11/8	2025/2/24	medium

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