Описание
Security update for squid
This update for squid to version 4.9 fixes the following issues:
Security issues fixed:
- CVE-2019-13345: Fixed multiple cross-site scripting vulnerabilities in cachemgr.cgi (bsc#1140738).
- CVE-2019-12526: Fixed potential remote code execution during URN processing (bsc#1156326).
- CVE-2019-12523,CVE-2019-18676: Fixed multiple improper validations in URI processing (bsc#1156329).
- CVE-2019-18677: Fixed Cross-Site Request Forgery in HTTP Request processing (bsc#1156328).
- CVE-2019-18678: Fixed incorrect message parsing which could have led to HTTP request splitting issue (bsc#1156323).
- CVE-2019-18679: Fixed information disclosure when processing HTTP Digest Authentication (bsc#1156324).
Other issues addressesd:
- Fixed DNS failures when peer name was configured with any upper case characters
- Fixed several rock cache_dir corruption issues
Список пакетов
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
Ссылки
- Link for SUSE-SU-2019:3067-1
- E-Mail link for SUSE-SU-2019:3067-1
- SUSE Security Ratings
- SUSE Bug 1140738
- SUSE Bug 1156323
- SUSE Bug 1156324
- SUSE Bug 1156326
- SUSE Bug 1156328
- SUSE Bug 1156329
- SUSE CVE CVE-2019-12523 page
- SUSE CVE CVE-2019-12526 page
- SUSE CVE CVE-2019-13345 page
- SUSE CVE CVE-2019-18676 page
- SUSE CVE CVE-2019-18677 page
- SUSE CVE CVE-2019-18678 page
- SUSE CVE CVE-2019-18679 page
Описание
An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.
Затронутые продукты
Ссылки
- CVE-2019-12523
- SUSE Bug 1156329
- SUSE Bug 1165586
Описание
An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.
Затронутые продукты
Ссылки
- CVE-2019-12526
- SUSE Bug 1156326
Описание
The cachemgr.cgi web module of Squid through 4.7 has XSS via the user_name or auth parameter.
Затронутые продукты
Ссылки
- CVE-2019-13345
- SUSE Bug 1140738
Описание
An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.
Затронутые продукты
Ссылки
- CVE-2019-18676
- SUSE Bug 1156329
- SUSE Bug 1165586
Описание
An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain setting is used (because the appended characters do not properly interact with hostname length restrictions). Due to incorrect message processing, it can inappropriately redirect traffic to origins it should not be delivered to.
Затронутые продукты
Ссылки
- CVE-2019-18677
- SUSE Bug 1156328
Описание
An issue was discovered in Squid 3.x and 4.x through 4.8. It allows attackers to smuggle HTTP requests through frontend software to a Squid instance that splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches (between a client and Squid) with attacker-controlled content at arbitrary URLs. Effects are isolated to software between the attacker client and Squid. There are no effects on Squid itself, nor on any upstream servers. The issue is related to a request header containing whitespace between a header name and a colon.
Затронутые продукты
Ссылки
- CVE-2019-18678
- SUSE Bug 1156323
Описание
An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks.
Затронутые продукты
Ссылки
- CVE-2019-18679
- SUSE Bug 1156324