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* Glossary: added the new term chat-bot * Security: added 3 new security bulletins. * Translations updated. * Fixes and improvements.
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en/_includes/security/security-bulletins/cve-2023-23583.md
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## 28/12/2023: CVE-2023-23583 Reptar vulnerability in Ice Lake (IPU Out-of-Band) {#CVE-2023-23583} | ||
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CVE ID: CVE-2023-23583 | ||
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CVE link: | ||
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<https://nvd.nist.gov/vuln/detail/CVE-2023-5043> | ||
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### Summary {#brief-description} | ||
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The Reptar vulnerability affects Intel-based server systems, and the manufacturer has released the necessary patches. The {{ yandex-cloud }} infrastructure has been updated. | ||
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The vulnerability potentially led to privilege escalation. | ||
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### Technologies affected {#technologies-affected} | ||
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Intel (microcode) | ||
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### Vulnerable products and versions {#vulnerable-products-and-versions} | ||
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<https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00950.html> | ||
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<https://www.intel.com/content/www/us/en/developer/topic-technology/software-security-guidance/processors-affected-consolidated-product-cpu-model.html> | ||
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### Base vector and severity level of the vulnerability according to CVSS v.3.0 {#severity-level} | ||
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7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | ||
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### Recommendations for vulnerability detection and additional materials {#recommendations-for-vulnerability-detection} | ||
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Procedure for checking the vulnerability and supporting materials (PoC code, video demonstration or others): | ||
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<https://lock.cmpxchg8b.com/reptar.html> | ||
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Update or patch version: | ||
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<https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00950.html> | ||
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### Safe version of vulnerable product or patch {#safe-version} | ||
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The vulnerability has been fixed as of version 1.9.0. | ||
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### Are cloud services affected? {#impact-on-yandex-cloud-services} | ||
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No. |
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en/_includes/security/security-bulletins/cve-2023-44487.md
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## 28/12/2023: CVE-2023-44487 HTTP/2 Rapid Reset DDoS Attack {#CVE-2023-44487} | ||
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CVE ID: CVE-2023-44487 | ||
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CVE link: | ||
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<https://nvd.nist.gov/vuln/detail/CVE-2023-44487> | ||
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### Original report {#original-report} | ||
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<https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088> | ||
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### Summary {#brief-description} | ||
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{{ yandex-cloud }} has implemented all necessary measures against CVE-2023-44487 known as _HTTP/2 Rapid Reset_. | ||
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This vulnerability is related to the HTTP/2 protocol. Under certain conditions, can be exploited to execute a denial-of-service attack on webservers such as NGINX, envoy and other products that implement the server-side portion of the HTTP/2 specification. To protect your systems from this attack, we’re recommending an immediate update to your web server. | ||
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### Technologies affected {#technologies-affected} | ||
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NGINX, HTTP/2 | ||
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### Vulnerable products and versions {#vulnerable-products-and-versions} | ||
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* NGINX Open Source 1.x: 1.25.2 - 1.9.5 | ||
* org.apache.tomcat.embed:tomcat-embed-core package, versions [,8.5.94], [9.0.0,9.0.81], [10.0.0,10.1.14], [11.0.0-M3,11.0.0-M12] | ||
* NGINX Ingress Controller | ||
* 3.x 3.0.0 - 3.3.0 3.3.1 | ||
* 2.x 2.0.0 - 2.4.2 | ||
* 1.x 1.12.2 - 1.12.5 | ||
* Envoy 1.27.1, 1.26.5, 1.25.10 or 1.24.10 | ||
* NGINX Plus R2x R25 - R30 | ||
* BIG-IP (all modules) 17.x 17.1.0 | ||
* BIG-IP Next (all modules) 20.x 20.0.1 | ||
* BIG-IP Next SPK 1.x 1.5.0 - 1.8.2 | ||
* <https://my.f5.com/manage/s/article/K000137106> | ||
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### Base vector and severity level of the vulnerability according to CVSS v.3.0 {#severity-level} | ||
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CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | ||
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### Recommendations for vulnerability detection and additional materials {#recommendations-for-vulnerability-detection} | ||
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Procedure for checking the vulnerability and supporting materials (PoC code, video demonstration or others): | ||
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<https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/> | ||
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<https://github.com/envoyproxy/envoy/security/advisories/GHSA-jhv4-f7mr-xx76> | ||
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<https://security.snyk.io/vuln/SNYK-JAVA-ORGAPACHETOMCATEMBED-5953331> | ||
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Update or patch version: | ||
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* Upgrade org.apache.tomcat.embed:tomcat-embed-core to version 8.5.94, 9.0.81, 10.1.14, 11.0.0-M12 or higher. | ||
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* Upgrade envoyproxy/envoy to version 1.24.11, 1.25.10, 1.26.5, 1.27.1 or higher. | ||
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* Use http2_max_concurrent_streams directive NGINX | ||
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<https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/> | ||
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* Use [{{ sws-full-name }}](https://cloud.yandex.ru/services/smartwebsecurity) | ||
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### Safe version of vulnerable product or patch {#safe-version} | ||
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Not yet. | ||
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### Are cloud services affected? {#impact-on-yandex-cloud-services} | ||
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No. |
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en/_includes/security/security-bulletins/cve-2023-46850.md
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## 28/12/2023: CVE-2023-46850 OpenVPN v.2.6.7 Security patch {#CVE-2023-46850} | ||
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CVE IDs: CVE-2023-46849, CVE-2023-46850 | ||
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CVE link: | ||
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<https://nvd.nist.gov/vuln/detail/CVE-2023-46849> | ||
<https://nvd.nist.gov/vuln/detail/CVE-2023-46850> | ||
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### Original report {#original-report} | ||
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<https://openvpn.net/community-downloads/> | ||
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### Summary {#brief-description} | ||
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CVE-2023-46850: it can lead to sending the contents of the process memory to the other side of the connection, as well as potentially to remote code execution. | ||
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CVE-2023-46849: this may lead to the remote initiation of an emergency shutdown of the access server. | ||
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### Technologies affected {#technologies-affected} | ||
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OpenVPN | ||
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### Vulnerable products and versions {#vulnerable-products-and-versions} | ||
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From v2.6.0 before v2.6.6 | ||
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### Base vector and severity level of the vulnerability according to CVSS v.3.0 {#severity-level} | ||
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Network. | ||
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### Procedure for checking the vulnerability and supporting materials (PoC code, video demonstration or others) {#poc} | ||
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No PoC yet. | ||
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### Safe version of vulnerable product or patch {#safe-version} | ||
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The vulnerability has been fixed as of version 2.6.7. | ||
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### Are cloud services affected? {#impact-on-yandex-cloud-services} | ||
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Yes. |
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