SB2018122701 - OpenSUSE Linux update for ovmf

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Main Vulnerability Database SB2018122701

SB2018122701 - OpenSUSE Linux update for ovmf

Published: December 27, 2018

Security Bulletin ID SB2018122701
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Privilege escalation (CVE-ID: CVE-2017-5731)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to an error when handling malicious input. A local attacker can supply specially crafted files in TianoCompress.c and gain elevated privileges.


2) Privilege escalation (CVE-ID: CVE-2017-5732)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to an error when handling malicious input. A local attacker can supply specially crafted files in BaseUefiDecompressLib.c and gain elevated privileges.


3) Heap-based buffer overflow (CVE-ID: CVE-2017-5733)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to boundary error when handling malicious input. A local attacker can supply specially crafted files in MakeTable() function, trigger heap-based buffer overflow and gain elevated privileges.


4) Stack-based buffer overflow (CVE-ID: CVE-2017-5734)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to boundary error when handling malicious input. A local attacker can supply specially crafted files in MakeTable() function, trigger stack-based buffer overflow and gain elevated privileges.


5) Heap-based buffer overflow (CVE-ID: CVE-2017-5735)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to boundary error when handling malicious input. A local attacker can supply specially crafted files in Decode() function, trigger heap-based buffer overflow and gain elevated privileges.


6) Authentication bypass (CVE-ID: CVE-2018-3613)

CWE-ID: CWE-840 - Business Logic Errors (3.0)

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to logic error in MdeModulePkg. A local attacker can bypass configuration access controls and gain elevated privileges.


Remediation

Install update from vendor's website.

References