httpd24-nghttp2-1.7.1-8.el7.1

エラータID: AXSA:2020-196:01

Release date: 
Thursday, July 2, 2020 - 03:24
Subject: 
httpd24-nghttp2-1.7.1-8.el7.1
Affected Channels: 
Asianux Server 7 for x86_64
Severity: 
High
Description: 

libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.

Security Fix(es):

* nghttp2: overly large SETTINGS frames can lead to DoS (CVE-2020-11080)

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.

CVE-2020-11080
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.

Solution: 

Update packages.

Additional Info: 

N/A

Download: 

SRPMS
  1. httpd24-nghttp2-1.7.1-8.el7.1.src.rpm
    MD5: 33b0f790b40e131b7f2dfa1eba11b8ec
    SHA-256: 9d6102dd5fe7ab05ce7d54011766d314d8a50cb1d484746e9a780cfe251491a5
    Size: 1.35 MB

Asianux Server 7 for x86_64
  1. httpd24-libnghttp2-1.7.1-8.el7.1.x86_64.rpm
    MD5: 537ba207cfe1fe1919d174c3deada9f7
    SHA-256: 8e53a50e410b5f51db20cbcde9f2220ea8bb43d3379c029fbb9475d1ab2ecb54
    Size: 61.48 kB
  2. httpd24-libnghttp2-devel-1.7.1-8.el7.1.x86_64.rpm
    MD5: 04cc4df92c5e0ded125b1ac552438ea2
    SHA-256: b3855fb62cade75b003aaa82a82fe56a8fbbc2a5f04f4aa3c1e51bff4a146f2e
    Size: 44.69 kB
  3. httpd24-nghttp2-1.7.1-8.el7.1.x86_64.rpm
    MD5: 23894230191122be883255c833514126
    SHA-256: f6f01c729d65a21c1ef2a9dd074b009b94a6929a288ac1963659cb04bb034e04
    Size: 3.89 kB