CVE-2019-9517

Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.

Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.

The following packages have been upgraded to a later upstream version: nodejs (10.16.3).

Security Fix(es):

• HTTP/2: large amount of data requests leads to denial of service (CVE-2019-9511)

• HTTP/2: flood using PING frames results in unbounded memory growth (CVE-2019-9512)

• HTTP/2: flood using PRIORITY frames results in excessive resource consumption (CVE-2019-9513)

• HTTP/2: flood using HEADERS frames results in unbounded memory growth (CVE-2019-9514)

• HTTP/2: flood using SETTINGS frames results in unbounded memory growth (CVE-2019-9515)

• HTTP/2: 0-length headers lead to denial of service (CVE-2019-9516)

• HTTP/2: request for large response leads to denial of service (CVE-2019-9517)

• HTTP/2: flood using empty frames results in excessive resource consumption (CVE-2019-9518)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.

The following packages have been upgraded to a later upstream version: nodejs (10.16.3).

Security Fix(es):

• HTTP/2: large amount of data requests leads to denial of service (CVE-2019-9511)

• HTTP/2: flood using PING frames results in unbounded memory growth (CVE-2019-9512)

• HTTP/2: flood using PRIORITY frames results in excessive resource consumption (CVE-2019-9513)

• HTTP/2: flood using HEADERS frames results in unbounded memory growth (CVE-2019-9514)

• HTTP/2: flood using SETTINGS frames results in unbounded memory growth (CVE-2019-9515)

• HTTP/2: 0-length headers lead to denial of service (CVE-2019-9516)

• HTTP/2: request for large response leads to denial of service (CVE-2019-9517)

• HTTP/2: flood using empty frames results in excessive resource consumption (CVE-2019-9518)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The updated packages fix security vulnerabilities:

Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both. (CVE-2019-9517)

HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client. (CVE-2019-10081)

In Apache HTTP Server 2.4.18-2.4.39, using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown. (CVE-2019-10082)

In Apache HTTP Server 2.4.0-2.4.39, a limited cross-site scripting issue was reported affecting the mod_proxy error page. An attacker could cause the link on the error page to be malformed and instead point to a page of their choice. This would only be exploitable where a server was set up with proxying enabled but was misconfigured in such a way that the Proxy Error page was displayed. (CVE-2019-10092)

In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients. (CVE-2019-10097)

In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL. (CVE-2019-10098)

The nodejs package has been updated to the latest version in the 10.x branch, which is 10.22.1 at this time. It fixes several security issues and other bugs. See the upstream changelog and advisories for details.

This update for apache2 fixes the following issues:

Security issues fixed:

• CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to unconstrained interal data buffering (bsc#1145575).
• CVE-2019-10081: Fixed mod_http2 that is vulnerable to memory corruption on early pushes (bsc#1145742).
• CVE-2019-10082: Fixed mod_http2 that is vulnerable to read-after-free in h2 connection shutdown (bsc#1145741).
• CVE-2019-10092: Fixed limited cross-site scripting in mod_proxy (bsc#1145740).
• CVE-2019-10097: Fixed mod_remoteip stack buffer overflow and NULL pointer dereference (bsc#1145739).
• CVE-2019-10098: Fixed mod_rewrite configuration vulnerablility to open redirect (bsc#1145738).

This update was imported from the SUSE:SLE-15:Update update project.

This update for nodejs10 to version 10.16.3 fixes the following issues:

Security issues fixed:

• CVE-2019-9511: Fixed HTTP/2 implementations that are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service (bsc#1146091).
• CVE-2019-9512: Fixed HTTP/2 flood using PING frames results in unbounded memory growth (bsc#1146099).
• CVE-2019-9513: Fixed HTTP/2 implementation that is vulnerable to resource loops, potentially leading to a denial of service. (bsc#1146094).
• CVE-2019-9514: Fixed HTTP/2 implementation that is vulnerable to a reset flood, potentially leading to a denial of service (bsc#1146095).
• CVE-2019-9515: Fixed HTTP/2 flood using SETTINGS frames results in unbounded memory growth (bsc#1146100).
• CVE-2019-9516: Fixed HTTP/2 implementation that is vulnerable to a header leak, potentially leading to a denial of service (bsc#1146090).
• CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to unconstrained interal data buffering (bsc#1146097).
• CVE-2019-9518: Fixed HTTP/2 implementation that is vulnerable to a flood of empty frames, potentially leading to a denial of service (bsc#1146093).

This update was imported from the SUSE:SLE-15:Update update project.

This update for nodejs8 to version 8.16.1 fixes the following issues:

Security issues fixed:

• CVE-2019-9511: Fixed HTTP/2 implementations that are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service (bsc#1146091).
• CVE-2019-9512: Fixed HTTP/2 flood using PING frames results in unbounded memory growth (bsc#1146099).
• CVE-2019-9513: Fixed HTTP/2 implementation that is vulnerable to resource loops, potentially leading to a denial of service. (bsc#1146094).
• CVE-2019-9514: Fixed HTTP/2 implementation that is vulnerable to a reset flood, potentially leading to a denial of service (bsc#1146095).
• CVE-2019-9515: Fixed HTTP/2 flood using SETTINGS frames results in unbounded memory growth (bsc#1146100).
• CVE-2019-9516: Fixed HTTP/2 implementation that is vulnerable to a header leak, potentially leading to a denial of service (bsc#1146090).
• CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to unconstrained interal data buffering (bsc#1146097).
• CVE-2019-9518: Fixed HTTP/2 implementation that is vulnerable to a flood of empty frames, potentially leading to a denial of service (bsc#1146093).

Bug fixes:

• Fixed that npm resolves its default config file like in all other versions, as /etc/nodejs/npmrc (bsc#1144919).

This update was imported from the SUSE:SLE-15:Update update project.

These are all security issues fixed in the apache2-2.4.49-1.1 package on the GA media of openSUSE Tumbleweed.

This update contains the Mozilla Firefox ESR 68.2 release.

Mozilla Firefox was updated to ESR 68.2 release:

• Enterprise: New administrative policies were added. More information and templates are available at the Policy Templates page.

• Various security fixes: MFSA 2019-33 (bsc#1154738)

  • CVE-2019-15903: Heap overflow in expat library in XML_GetCurrentLineNumber
  • CVE-2019-11757: Use-after-free when creating index updates in IndexedDB
  • CVE-2019-11758: Potentially exploitable crash due to 360 Total Security
  • CVE-2019-11759: Stack buffer overflow in HKDF output
  • CVE-2019-11760: Stack buffer overflow in WebRTC networking
  • CVE-2019-11761: Unintended access to a privileged JSONView object
  • CVE-2019-11762: document.domain-based origin isolation has same-origin- property violation
  • CVE-2019-11763: Incorrect HTML parsing results in XSS bypass technique
  • CVE-2019-11764: Memory safety bugs fixed in Firefox 70 and Firefox ESR 68.2

Other Issues resolved:

• [bsc#1104841] Newer versions of firefox have a dependency on GLIBCXX_3.4.20
• [bsc#1074235] MozillaFirefox: background tab crash reports sent inadvertently without user opt-in
• [bsc#1043008] Firefox hangs randomly when browsing and scrolling
• [bsc#1025108] Firefox stops loading page until mouse is moved
• [bsc#905528] Firefox malfunctions due to broken omni.ja archives

This update for apache2 fixes the following issues:

Security issues fixed:

• CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to unconstrained interal data buffering (bsc#1145575).
• CVE-2019-10081: Fixed mod_http2 that is vulnerable to memory corruption on early pushes (bsc#1145742).
• CVE-2019-10082: Fixed mod_http2 that is vulnerable to read-after-free in h2 connection shutdown (bsc#1145741).
• CVE-2019-10092: Fixed limited cross-site scripting in mod_proxy (bsc#1145740).
• CVE-2019-10097: Fixed mod_remoteip stack buffer overflow and NULL pointer dereference (bsc#1145739).
• CVE-2019-10098: Fixed mod_rewrite configuration vulnerablility to open redirect (bsc#1145738).

This update for nodejs10 to version 10.16.3 fixes the following issues:

Security issues fixed:

• CVE-2019-9511: Fixed HTTP/2 implementations that are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service (bsc#1146091).
• CVE-2019-9512: Fixed HTTP/2 flood using PING frames results in unbounded memory growth (bsc#1146099).
• CVE-2019-9513: Fixed HTTP/2 implementation that is vulnerable to resource loops, potentially leading to a denial of service. (bsc#1146094).
• CVE-2019-9514: Fixed HTTP/2 implementation that is vulnerable to a reset flood, potentially leading to a denial of service (bsc#1146095).
• CVE-2019-9515: Fixed HTTP/2 flood using SETTINGS frames results in unbounded memory growth (bsc#1146100).
• CVE-2019-9516: Fixed HTTP/2 implementation that is vulnerable to a header leak, potentially leading to a denial of service (bsc#1146090).
• CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to unconstrained interal data buffering (bsc#1146097).
• CVE-2019-9518: Fixed HTTP/2 implementation that is vulnerable to a flood of empty frames, potentially leading to a denial of service (bsc#1146093).

This update for nodejs10 to version 10.16.3 fixes the following issues:

Security issues fixed:

• CVE-2019-9511: Fixed HTTP/2 implementations that are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service (bsc#1146091).
• CVE-2019-9512: Fixed HTTP/2 flood using PING frames results in unbounded memory growth (bsc#1146099).
• CVE-2019-9513: Fixed HTTP/2 implementation that is vulnerable to resource loops, potentially leading to a denial of service. (bsc#1146094).
• CVE-2019-9514: Fixed HTTP/2 implementation that is vulnerable to a reset flood, potentially leading to a denial of service (bsc#1146095).
• CVE-2019-9515: Fixed HTTP/2 flood using SETTINGS frames results in unbounded memory growth (bsc#1146100).
• CVE-2019-9516: Fixed HTTP/2 implementation that is vulnerable to a header leak, potentially leading to a denial of service (bsc#1146090).
• CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to unconstrained interal data buffering (bsc#1146097).
• CVE-2019-9518: Fixed HTTP/2 implementation that is vulnerable to a flood of empty frames, potentially leading to a denial of service (bsc#1146093).

This update for nodejs8 to version 8.16.1 fixes the following issues:

Security issues fixed:

• CVE-2019-9511: Fixed HTTP/2 implementations that are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service (bsc#1146091).
• CVE-2019-9512: Fixed HTTP/2 flood using PING frames results in unbounded memory growth (bsc#1146099).
• CVE-2019-9513: Fixed HTTP/2 implementation that is vulnerable to resource loops, potentially leading to a denial of service. (bsc#1146094).
• CVE-2019-9514: Fixed HTTP/2 implementation that is vulnerable to a reset flood, potentially leading to a denial of service (bsc#1146095).
• CVE-2019-9515: Fixed HTTP/2 flood using SETTINGS frames results in unbounded memory growth (bsc#1146100).
• CVE-2019-9516: Fixed HTTP/2 implementation that is vulnerable to a header leak, potentially leading to a denial of service (bsc#1146090).
• CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to unconstrained interal data buffering (bsc#1146097).
• CVE-2019-9518: Fixed HTTP/2 implementation that is vulnerable to a flood of empty frames, potentially leading to a denial of service (bsc#1146093).

Bug fixes:

• Fixed that npm resolves its default config file like in all other versions, as /etc/nodejs/npmrc (bsc#1144919).

This update for apache2 fixes the following issues:

Security issues fixed:

• CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to unconstrained interal data buffering (bsc#1145575).
• CVE-2019-10081: Fixed mod_http2 that is vulnerable to memory corruption on early pushes (bsc#1145742).
• CVE-2019-10082: Fixed mod_http2 that is vulnerable to read-after-free in h2 connection shutdown (bsc#1145741).
• CVE-2019-10092: Fixed limited cross-site scripting in mod_proxy (bsc#1145740).
• CVE-2019-10098: Fixed mod_rewrite configuration vulnerablility to open redirect (bsc#1145738).

This update for nodejs12 fixes the following issues:

Update to LTS release 12.13.0 (jsc#SLE-8947).

Security issues fixed:

• CVE-2019-9511: Fixed the HTTP/2 implementation that was vulnerable to window size manipulations (bsc#1146091).
• CVE-2019-9512: Fixed the HTTP/2 implementation that was vulnerable to floods using PING frames (bsc#1146099).
• CVE-2019-9513: Fixed the HTTP/2 implementation that was vulnerable to resource loops, potentially leading to a denial of service (bsc#1146094).
• CVE-2019-9514: Fixed the HTTP/2 implementation that was vulnerable to a reset flood, potentially leading to a denial of service (bsc#1146095).
• CVE-2019-9515: Fixed the HTTP/2 implementation that was vulnerable to a SETTINGS frame flood (bsc#1146100).
• CVE-2019-9516: Fixed the HTTP/2 implementation that was vulnerable to a header leak, potentially leading to a denial of service (bsc#1146090).
• CVE-2019-9517: Fixed the HTTP/2 implementation that was vulnerable to unconstrained interal data buffering (bsc#1146097).
• CVE-2019-9518: Fixed the HTTP/2 implementation that was vulnerable to a flood of empty frames, potentially leading to a denial of service (bsc#1146093).
• CVE-2019-13173: Fixed a file overwrite in the fstream.DirWriter() function (bsc#1140290).

Stefan Eissing discovered that the HTTP/2 implementation in Apache did not properly handle upgrade requests from HTTP/1.1 to HTTP/2 in some situations. A remote attacker could use this to cause a denial of service (daemon crash). This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.04. (CVE-2019-0197)

Craig Young discovered that a memory overwrite error existed in Apache when performing HTTP/2 very early pushes in some situations. A remote attacker could use this to cause a denial of service (daemon crash). This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.04. (CVE-2019-10081)

Craig Young discovered that a read-after-free error existed in the HTTP/2 implementation in Apache during connection shutdown. A remote attacker could use this to possibly cause a denial of service (daemon crash) or possibly expose sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.04. (CVE-2019-10082)

Matei Badanoiu discovered that the mod_proxy component of Apache did not properly filter URLs when reporting errors in some configurations. A remote attacker could possibly use this issue to conduct cross-site scripting (XSS) attacks. (CVE-2019-10092)

Daniel McCarney discovered that mod_remoteip component of Apache contained a stack buffer overflow when parsing headers from a trusted intermediary proxy in some situations. A remote attacker controlling a trusted proxy could use this to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 19.04. (CVE-2019-10097)

Yukitsugu Sasaki discovered that the mod_rewrite component in Apache was vulnerable to open redirects in some situations. A remote attacker could use this to possibly expose sensitive information or bypass intended restrictions. (CVE-2019-10098)

Jonathan Looney discovered that the HTTP/2 implementation in Apache did not properly limit the amount of buffering for client connections in some situations. A remote attacker could use this to cause a denial of service (unresponsive daemon). This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.04. (CVE-2019-9517)