Описание
Security update for apache2
This update for apache2 fixes the following issues:
- fixed CVE-2021-30641 [bsc#1187174]: MergeSlashes regression
- fixed CVE-2021-31618 [bsc#1186924]: NULL pointer dereference on specially crafted HTTP/2 request
- fixed CVE-2020-13950 [bsc#1187040]: mod_proxy NULL pointer dereference
- fixed CVE-2020-35452 [bsc#1186922]: Single zero byte stack overflow in mod_auth_digest
- fixed CVE-2021-26690 [bsc#1186923]: mod_session NULL pointer dereference in parser
- fixed CVE-2021-26691 [bsc#1187017]: Heap overflow in mod_session
Список пакетов
Image SLES15-SP2-Manager-4-1-Proxy-BYOS-Azure
Image SLES15-SP2-Manager-4-1-Proxy-BYOS-EC2-HVM
Image SLES15-SP2-Manager-4-1-Proxy-BYOS-GCE
Image SLES15-SP2-Manager-4-1-Server-BYOS-Azure
Image SLES15-SP2-Manager-4-1-Server-BYOS-EC2-HVM
Image SLES15-SP2-Manager-4-1-Server-BYOS-GCE
Image SLES15-SP3-EC2-HVM
Image SLES15-SP3-Manager-4-2-Proxy-BYOS-Azure
Image SLES15-SP3-Manager-4-2-Proxy-BYOS-EC2-HVM
Image SLES15-SP3-Manager-4-2-Proxy-BYOS-GCE
Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure
Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM
Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE
Image SLES15-SP3-SAP-Azure
Image SLES15-SP3-SAP-EC2-HVM
Image SLES15-SP3-SAP-GCE
Image SLES15-SP3-SAPCAL-Azure
Image SLES15-SP3-SAPCAL-EC2-HVM
Image SLES15-SP3-SAPCAL-GCE
SUSE Linux Enterprise Module for Basesystem 15 SP2
SUSE Linux Enterprise Module for Basesystem 15 SP3
SUSE Linux Enterprise Module for Package Hub 15 SP3
SUSE Linux Enterprise Module for Server Applications 15 SP2
SUSE Linux Enterprise Module for Server Applications 15 SP3
Ссылки
- Link for SUSE-SU-2021:2127-1
- E-Mail link for SUSE-SU-2021:2127-1
- SUSE Security Ratings
- SUSE Bug 1186922
- SUSE Bug 1186923
- SUSE Bug 1186924
- SUSE Bug 1187017
- SUSE Bug 1187040
- SUSE Bug 1187174
- SUSE CVE CVE-2020-13950 page
- SUSE CVE CVE-2020-35452 page
- SUSE CVE CVE-2021-26690 page
- SUSE CVE CVE-2021-26691 page
- SUSE CVE CVE-2021-30641 page
- SUSE CVE CVE-2021-31618 page
Описание
Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service
Затронутые продукты
Ссылки
- CVE-2020-13950
- SUSE Bug 1187040
Описание
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow
Затронутые продукты
Ссылки
- CVE-2020-35452
- SUSE Bug 1186922
- SUSE Bug 1187933
Описание
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service
Затронутые продукты
Ссылки
- CVE-2021-26690
- SUSE Bug 1186923
- SUSE Bug 1187933
Описание
In Apache HTTP Server versions 2.4.0 to 2.4.46 a specially crafted SessionHeader sent by an origin server could cause a heap overflow
Затронутые продукты
Ссылки
- CVE-2021-26691
- SUSE Bug 1187017
- SUSE Bug 1187933
Описание
Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'
Затронутые продукты
Ссылки
- CVE-2021-30641
- SUSE Bug 1187174
Описание
Apache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. On violation of these restrictions and HTTP response is sent to the client with a status code indicating why the request was rejected. This rejection response was not fully initialised in the HTTP/2 protocol handler if the offending header was the very first one received or appeared in a a footer. This led to a NULL pointer dereference on initialised memory, crashing reliably the child process. Since such a triggering HTTP/2 request is easy to craft and submit, this can be exploited to DoS the server. This issue affected mod_http2 1.15.17 and Apache HTTP Server version 2.4.47 only. Apache HTTP Server 2.4.47 was never released.
Затронутые продукты
Ссылки
- CVE-2021-31618
- SUSE Bug 1186924
- SUSE Bug 1187933