Описание
Security update for squid
This update for squid fixes the following issues:
- CVE-2019-12528: Fixed an information disclosure flaw in the FTP gateway (bsc#1162689).
- 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).
- CVE-2020-8449: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).
- CVE-2020-8450: Fixed a buffer overflow when squid is acting as reverse-proxy (bsc#1162687).
- CVE-2020-8517: Fixed a buffer overflow in ext_lm_group_acl when processing NTLM Authentication credentials (bsc#1162691).
Список пакетов
HPE Helion OpenStack 8
SUSE Enterprise Storage 5
SUSE Linux Enterprise Server 12 SP2-BCL
SUSE Linux Enterprise Server 12 SP2-LTSS
SUSE Linux Enterprise Server 12 SP3-BCL
SUSE Linux Enterprise Server 12 SP3-LTSS
SUSE Linux Enterprise Server 12 SP4
SUSE Linux Enterprise Server for SAP Applications 12 SP2
SUSE Linux Enterprise Server for SAP Applications 12 SP3
SUSE Linux Enterprise Server for SAP Applications 12 SP4
SUSE OpenStack Cloud 7
SUSE OpenStack Cloud 8
SUSE OpenStack Cloud Crowbar 8
Ссылки
- Link for SUSE-SU-2020:0661-1
- E-Mail link for SUSE-SU-2020:0661-1
- SUSE Security Ratings
- SUSE Bug 1156323
- SUSE Bug 1156324
- SUSE Bug 1156326
- SUSE Bug 1156328
- SUSE Bug 1156329
- SUSE Bug 1162687
- SUSE Bug 1162689
- SUSE Bug 1162691
- SUSE CVE CVE-2019-12523 page
- SUSE CVE CVE-2019-12526 page
- SUSE CVE CVE-2019-12528 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
- SUSE CVE CVE-2020-8449 page
- SUSE CVE CVE-2020-8450 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
An issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users' sessions or non-Squid processes.
Затронутые продукты
Ссылки
- CVE-2019-12528
- SUSE Bug 1162689
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
Описание
An issue was discovered in Squid before 4.10. Due to incorrect input validation, it can interpret crafted HTTP requests in unexpected ways to access server resources prohibited by earlier security filters.
Затронутые продукты
Ссылки
- CVE-2020-8449
- SUSE Bug 1162687
Описание
An issue was discovered in Squid before 4.10. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy.
Затронутые продукты
Ссылки
- CVE-2020-8450
- SUSE Bug 1162687
Описание
An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.
Затронутые продукты
Ссылки
- CVE-2020-8517
- SUSE Bug 1162691