ID CVE-2015-8659
Summary The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug.
References
Vulnerable Configurations
  • Apple Mac OS X 10.11.3
    cpe:2.3:o:apple:mac_os_x:10.11.3
  • Apple iPhone OS 9.2.1
    cpe:2.3:o:apple:iphone_os:9.2.1
  • Apple TV 9.1
    cpe:2.3:o:apple:apple_tv:9.1
  • Apple WatchOS 2.1
    cpe:2.3:o:apple:watchos:2.1
  • Nghttp2 1.5.0
    cpe:2.3:a:nghttp2:nghttp2:1.5.0
CVSS
Base: 10.0 (as of 01-04-2016 - 13:49)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
nessus via4
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201612-06.NASL
    description The remote host is affected by the vulnerability described in GLSA-201612-06 (nghttp2: Heap-use-after-free) A heap-use-after-free vulnerability has been discovered in nghttp2. Please review the CVE identifier referenced below for details. Impact : The impact of the vulnerability is still unknown. Workaround : There is no known workaround at this time.
    last seen 2017-10-29
    modified 2016-12-05
    plugin id 95521
    published 2016-12-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95521
    title GLSA-201612-06 : nghttp2: Heap-use-after-free
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-54F85EC6E8.NASL
    description - update to nghttp2-1.6.0 (fixes CVE-2015-8659) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2017-10-29
    modified 2016-10-18
    plugin id 89545
    published 2016-03-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89545
    title Fedora 23 : nghttp2-1.6.0-1.fc23 (2016-54f85ec6e8)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_93EADEDBC6A611E596D614DAE9D210B8.NASL
    description nghttp2 reports : This release fixes heap-use-after-free bug in idle stream handling code. We strongly recommend to upgrade the older installation to this latest version as soon as possible.
    last seen 2017-10-29
    modified 2016-10-19
    plugin id 88501
    published 2016-02-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=88501
    title FreeBSD : nghttp2 -- use after free (93eadedb-c6a6-11e5-96d6-14dae9d210b8)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-8E13AC5754.NASL
    description - update to nghttp2-1.6.0 (fixes CVE-2015-8659) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2017-10-29
    modified 2016-10-18
    plugin id 89578
    published 2016-03-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89578
    title Fedora 22 : nghttp2-1.6.0-1.fc22 (2016-8e13ac5754)
  • NASL family Misc.
    NASL id APPLETV_9_2.NASL
    description According to its banner, the remote Apple TV device is a version prior to 9.2. It is, therefore, affected by the following vulnerabilities : - An XML external entity (XXE) expansion flaw exists in libxml2 due to the XML parser accepting entities from untrusted sources. An unauthenticated, remote attacker can exploit this, via crafted XML data, to cause a denial of service through resource exhaustion. (CVE-2015-1819) - An XML external entity (XXE) injection flaw exists in libxml2 in file parser.c due to the XML parser accepting entities from untrusted sources. An unauthenticated, remote attacker can exploit this, via crafted XML data, to cause a denial of service or to disclose sensitive information. (CVE-2015-5312) - A heap buffer overflow condition exists in libxml2 in the xmlGROW() function within file parser.c while handling XML data. An unauthenticated, remote attacker can exploit this to disclose sensitive information. (CVE-2015-7499) - An out-of-bounds heap read error exists in libxml2 in the xmlParseMisc() function within file parser.c while handling entity boundaries. An unauthenticated, remote attacker can exploit this to cause a denial of service. (CVE-2015-7500) - An out-of-bounds read error exists in libxml2 in the xmlParseConditionalSections() function within file parser.c due to a failure to properly skip intermediary entities when it stops parsing invalid input. An unauthenticated, remote attacker can exploit this, via crafted XML data, to cause a denial of service. (CVE-2015-7942) - A flaw exists in libxml2 in the xz_decomp() function within file xzlib.c due to a failure to properly detect compression errors when handling compressed XML content. An unauthenticated, remote attacker can exploit this, via crafted XML data, to cause an infinite loop, resulting in a denial of service. (CVE-2015-8035) - A out-of-bounds read error exists in libxml2 in the xmlSAX2TextNode() function within file SAX2.c due to improper sanitization of input data. An unauthenticated, remote attacker can exploit this, via crafted XML data, to cause a denial of service or to disclose sensitive information. (CVE-2015-8242) - A use-after-free error exists in Nghttp2 within file lib/nghttp2_session.c when handling idle streams. An unauthenticated, remote attacker can exploit this to deference already freed memory, allowing the execution of arbitrary code. (CVE-2015-8659) - An overflow condition exists in the Broadcom Wi-Fi driver due to improper validation of data while handling SSID or WPS_ID_DEVICE_NAME values. An unauthenticated, adjacent attacker can exploit this, via a crafted wireless control message packet, to cause a denial of service or to execute arbitrary code. (CVE-2016-0801) - An overflow condition exists in the Broadcom Wi-Fi driver due to improper validation of user-supplied input when handling the packet length of event messages. An unauthenticated, adjacent attacker can exploit this, via a crafted wireless control message packet, to cause a denial of service or to execute arbitrary code. (CVE-2016-0802) - A flaw exists in FontParser due to improper validation of user-supplied input when handling encoded fonts that contain invalid characters. An unauthenticated, remote attacker can exploit this, via a crafted PDF document, to corrupt memory, resulting in a denial of service or the execution arbitrary code. (CVE-2016-1740) - A flaw exists in IOHIDFamily due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, via a crafted application, to gain access to kernel memory layout information. (CVE-2016-1748) - A use-after-free error exists in the kernel that allows an unauthenticated, remote attacker to execute arbitrary code via a crafted application. (CVE-2016-1750) - A flaw exists in the kernel due to a failure to properly restrict execution permissions. An unauthenticated, remote attacker can exploit this, via a crafted application, to bypass code-signing protection mechanisms. (CVE-2016-1751) - An unspecified flaw exists in the kernel that allows a local attacker to cause a denial of service via a crafted application. (CVE-2016-1752) - An integer overflow condition exists in the kernel due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, via a crafted application, to gain elevated privileges. (CVE-2016-1753) - A memory corruption issue exists in the kernel due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, by convincing a user to install a malicious application, to cause a denial of service or execute arbitrary code. CVE-2016-1754) - A use-after-free error exists in the AppleKeyStore user client when handling multiple threads, which is triggered when one thread closes the user client while another attempts to call an external method. An unauthenticated, remote attacker can exploit this, by convincing a user to install a malicious application, to execute arbitrary code with elevated privileges. (CVE-2016-1755) - A flaw exists in libxml2 due to improper validation of user-supplied input while handling XML content. An unauthenticated, remote attacker can exploit this, via a crafted XML document, to cause a denial of service or to execute arbitrary code. (CVE-2016-1762) - An out-of-bounds write error exists in TrueTypeScaler due to improper validation of user-supplied input while handling bdat tables in TTF fonts. An unauthenticated, remote attacker can exploit this, via a crafted TTF font, to cause a denial or service or to execute arbitrary code. (CVE-2016-1775) - A flaw exists in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, via a crafted website, to cause a denial of service or execute arbitrary code. (CVE-2016-1783) - An unspecified flaw exists in the History implementation of WebKit that allows an unauthenticated, remote attacker to cause a denial of service via a crafted website. (CVE-2016-1784) - A heap buffer overflow condition exists in Mozilla Network Security Services due to improper validation of user-supplied input while parsing ASN.1 structures. An unauthenticated, remote attacker can exploit this, via crafted ASN.1 data in an X.509 certificate, to cause a denial of service or execute arbitrary code. (CVE-2016-1950) Note that only 4th generation models are affected by these vulnerabilities, and this plugin only checks these models.
    last seen 2018-07-01
    modified 2018-06-29
    plugin id 90309
    published 2016-04-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90309
    title Apple TV < 9.2 Multiple Vulnerabilities
  • NASL family MacOS X Local Security Checks
    NASL id MACOSX_10_11_4.NASL
    description The remote host is running a version of Mac OS X that is 10.11.x prior to 10.11.4. It is, therefore, affected by multiple vulnerabilities in the following components : - apache_mod_php - AppleRAID - AppleUSBNetworking - Bluetooth - Carbon - dyld - FontParser - HTTPProtocol - Intel Graphics Driver - IOFireWireFamily - IOGraphics - IOHIDFamily - IOUSBFamily - Kernel - libxml2 - Messages - NVIDIA Graphics Drivers - OpenSSH - OpenSSL - Python - QuickTime - Reminders - Ruby - Security - Tcl - TrueTypeScaler - Wi-Fi Note that successful exploitation of the most serious issues can result in arbitrary code execution.
    last seen 2018-07-15
    modified 2018-07-14
    plugin id 90096
    published 2016-03-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90096
    title Mac OS X 10.11.x < 10.11.4 Multiple Vulnerabilities
refmap via4
apple
  • APPLE-SA-2016-03-21-1
  • APPLE-SA-2016-03-21-2
  • APPLE-SA-2016-03-21-3
  • APPLE-SA-2016-03-21-5
confirm
fedora
  • FEDORA-2016-54f85ec6e8
  • FEDORA-2016-8e13ac5754
gentoo GLSA-201612-06
mlist
  • [oss-security] 20151223 Re: Use after free in nghttp2
  • [oss-security] 20151223 Use after free in nghttp2
sectrack 1035353
the hacker news via4
id THN:35D65655AF3E2530CD06D90BAC7FBED8
last seen 2018-07-15
modified 2018-07-15
published 2016-08-03
reporter The Hacker News
source https://thehackernews.com/2016/08/http2-protocol-security.html
title 4 Flaws hit HTTP/2 Protocol that could allow Hackers to Disrupt Servers
Last major update 07-12-2016 - 13:29
Published 12-01-2016 - 14:59
Last modified 30-06-2017 - 21:29
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