Memory leak in the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to cause a denial of service (memory consumption) via a large number of ASN.1 object identifiers in X.509 certificates.

The remote host is running a version of macOS that is prior to 10.14. It is, therefore, affected by multiple vulnerabilities in the following components :

 - afpserver
 - AppleGraphicsControl
 - Application Firewall
 - App Store
 - APR
 - ATS
 - Auto Unlock
 - Bluetooth
 - CFNetwork
 - CoreFoundation
 - CoreText
 - Crash Reporter
 - CUPS
 - Dictionary
 - Grand Central Dispatch
 - Heimdal
 - Hypervisor
 - iBooks
 - Intel Graphics Driver
 - IOHIDFamily
 - IOKit
 - IOUserEthernet
 - Kernel
 - LibreSSL
 - Login Window
 - mDNSOffloadUserClient
 - MediaRemote
 - Microcode
 - Security
 - Spotlight
 - Symptom Framework
 - Text
 - Wi-Fi

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

The remote host is running a version of Mac OS X that is prior to 10.13.6 or is not macOS 10.14. It is, therefore, affected by multiple vulnerabilities in the following components :

  - afpserver
  - AppleGraphicsControl
  - Application Firewall
  - App Store
  - APR
  - ATS
  - Auto Unlock
  - Bluetooth
  - CFNetwork
  - CoreFoundation
  - CoreText
  - Crash Reporter
  - CUPS
  - Dictionary
  - Grand Central Dispatch
  - Heimdal
  - Hypervisor
  - iBooks
  - Intel Graphics Driver
  - IOHIDFamily
  - IOKit
  - IOUserEthernet
  - Kernel
  - LibreSSL
  - Login Window
  - mDNSOffloadUserClient
  - MediaRemote
  - Microcode
  - Security
  - Spotlight
  - Symptom Framework
  - Text
  - Wi-Fi

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

The remote host is running a version of Mac OS X version 10.11.x prior to 10.11.2 and is affected by multiple vulnerabilities in the following components :

 - apache_mod_php
 - AppSandbox
 - Bluetooth
 - CFNetwork HTTPProtocol
 - Compression
 - Configuration Profiles
 - CoreGraphics
 - CoreMedia Playback
 - Disk Images
 - EFI
 - File Bookmark
 - Hypervisor
 - iBooks
 - ImageIO
 - Intel Graphics Driver
 - IOAcceleratorFamily
 - IOHIDFamily
 - IOKit SCSI
 - IOThunderboltFamily
 - Kernel
 - kext tools
 - Keychain Access
 - libarchive
 - libc
 - libexpat
 - libxml2
 - OpenGL
 - OpenLDAP
 - OpenSSH
 - QuickLook
 - Sandbox
 - Security
 - System Integrity Protection

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

This libressl update to version 2.2.7 fixes the following issues :

Security issues fixed :

  - Fix multiple vulnerabilities in libcrypto relating to     ASN.1 and encoding. [boo#978492, boo#977584]

  - CVE-2015-3194: Certificate verify crash with missing PSS     parameter (boo#957815)

  - CVE-2015-3195: X509_ATTRIBUTE memory leak (boo#957812)

  - CVE-2015-5333: Memory Leak (boo#950707)

  - CVE-2015-5334: Buffer Overflow (boo#950708)

The remote host is running a version of Mac OS X that is 10.9.5 or 10.10.5 and is missing Security Update 2016-002. It is, therefore, affected by multiple vulnerabilities in the following components :

  - apache_mod_php
  - Kernel
  - libxml2
  - OpenSSH
  - Python
  - Tcl

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

The remote host is running a version of Mac OS X 10.9.5 or 10.10.5 that is missing Security Update 2015-005 or 2015-008. It is, therefore, affected by multiple vulnerabilities in the following components :

  - apache_mod_php
  - AppSandbox
  - Bluetooth
  - CFNetwork HTTPProtocol
  - Compression
  - Configuration Profiles
  - CoreGraphics
  - CoreMedia Playback
  - Disk Images
  - EFI
  - File Bookmark
  - Hypervisor
  - iBooks
  - ImageIO
  - Intel Graphics Driver
  - IOAcceleratorFamily
  - IOHIDFamily
  - IOKit SCSI
  - IOThunderboltFamily
  - Kernel
  - kext tools
  - Keychain Access
  - libarchive
  - libc
  - libexpat
  - libxml2
  - OpenGL
  - OpenLDAP
  - OpenSSH
  - QuickLook
  - Sandbox
  - Security
  - System Integrity Protection

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

The remote host is running a version of Mac OS X that is 10.11.x prior to 10.11.2. It is, therefore, affected by multiple vulnerabilities in the following components :

  - apache_mod_php
  - AppSandbox
  - Bluetooth
  - CFNetwork HTTPProtocol
  - Compression
  - Configuration Profiles
  - CoreGraphics
  - CoreMedia Playback
  - Disk Images
  - EFI
  - File Bookmark
  - Hypervisor
  - iBooks
  - ImageIO
  - Intel Graphics Driver
  - IOAcceleratorFamily
  - IOHIDFamily
  - IOKit SCSI
  - IOThunderboltFamily
  - Kernel
  - kext tools
  - Keychain Access
  - libarchive
  - libc
  - libexpat
  - libxml2
  - OpenGL
  - OpenLDAP
  - OpenSSH
  - QuickLook
  - Sandbox
  - Security
  - System Integrity Protection

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

libressl was updated to fix two security issues.

These security issues were fixed :

  - CVE-2015-5333: Memory leak when decoding X.509     certificates (boo#950707)

  - CVE-2015-5334: Buffer overflow when decoding X.509     certificates (boo#950708)

Qualys reports :

During the code review of OpenSMTPD a memory leak and buffer overflow (an off-by-one, usually stack-based) were discovered in LibreSSL's OBJ_obj2txt() function. This function is called automatically during a TLS handshake (both client-side, unless an anonymous mode is used, and server-side, if client authentication is requested).

ID	Name	Product	Family	Severity
700518	macOS < 10.14 Multiple Vulnerabilities	Nessus Network Monitor	Operating System Detection	critical
118178	macOS < 10.14 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	critical
9325	Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities	Nessus Network Monitor	Operating System Detection	critical
91274	openSUSE Security Update : libressl (openSUSE-2016-604)	Nessus	SuSE Local Security Checks	critical
90097	Mac OS X 10.9.5 / 10.10.5 Multiple Vulnerabilities (Security Update 2016-002)	Nessus	MacOS X Local Security Checks	critical
87321	Mac OS X Multiple Vulnerabilities (Security Updates 2015-005 / 2015-008)	Nessus	MacOS X Local Security Checks	critical
87314	Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	critical
86622	openSUSE Security Update : libressl (openSUSE-2015-681)	Nessus	SuSE Local Security Checks	critical
86434	FreeBSD : LibreSSL -- Memory leak and buffer overflow (e75a96df-73ca-11e5-9b45-b499baebfeaf)	Nessus	FreeBSD Local Security Checks	critical

Detections

Analytics

CVE-2015-5333

high

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical

critical

critical