Executive Summary

Summary
Title grub2 security update
Informations
Name DSA-3421 First vendor Publication 2015-12-16
Vendor Debian Last vendor Modification 2015-12-16
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Hector Marco and Ismael Ripoll, from Cybersecurity UPV Research Group, found an integer underflow vulnerability in Grub2, a popular bootloader. A local attacker can bypass the Grub2 authentication by inserting a crafted input as username or password.

More information: http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html

For the oldstable distribution (wheezy), this problem has been fixed in version 1.99-27+deb7u3.

For the stable distribution (jessie), this problem has been fixed in version 2.02~beta2-22+deb8u1.

For the unstable distribution (sid), this problem has been fixed in version 2.02~beta2-33.

We recommend that you upgrade your grub2 packages.

Original Source

Url : http://www.debian.org/security/2015/dsa-3421

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 5
Os 1

Nessus® Vulnerability Scanner

Date Description
2018-08-17 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2016-0012.nasl - Type : ACT_GATHER_INFO
2016-03-04 Name : The remote Fedora host is missing a security update.
File : fedora_2015-cebe5133e7.nasl - Type : ACT_GATHER_INFO
2016-03-04 Name : The remote Fedora host is missing a security update.
File : fedora_2015-90c27b6e91.nasl - Type : ACT_GATHER_INFO
2016-01-20 Name : The remote Solaris system is missing a security patch from CPU jan2016.
File : solaris_jan2016_SRU11_3_4_5_0.nasl - Type : ACT_GATHER_INFO
2016-01-14 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL25901386.nasl - Type : ACT_GATHER_INFO
2016-01-07 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-10.nasl - Type : ACT_GATHER_INFO
2016-01-04 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-2399-1.nasl - Type : ACT_GATHER_INFO
2015-12-30 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-2385-1.nasl - Type : ACT_GATHER_INFO
2015-12-30 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-2387-1.nasl - Type : ACT_GATHER_INFO
2015-12-30 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-2386-1.nasl - Type : ACT_GATHER_INFO
2015-12-29 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-957.nasl - Type : ACT_GATHER_INFO
2015-12-22 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20151215_grub2_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2015-12-21 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201512-03.nasl - Type : ACT_GATHER_INFO
2015-12-18 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2015-351-01.nasl - Type : ACT_GATHER_INFO
2015-12-17 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3421.nasl - Type : ACT_GATHER_INFO
2015-12-17 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-2623.nasl - Type : ACT_GATHER_INFO
2015-12-16 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2836-1.nasl - Type : ACT_GATHER_INFO
2015-12-16 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-2623.nasl - Type : ACT_GATHER_INFO
2015-12-16 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-2623.nasl - Type : ACT_GATHER_INFO
2015-12-14 Name : The remote Debian host is missing a security update.
File : debian_DLA-368.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2016-01-22 09:26:15
  • Multiple Updates
2015-12-18 13:27:53
  • Multiple Updates
2015-12-17 21:29:11
  • Multiple Updates
2015-12-17 05:28:04
  • Multiple Updates
2015-12-17 00:23:28
  • First insertion