CVE-2024-25617

Squid is a high-performance proxy caching server. It handles all requests in a single, non-blocking, I/O-driven process and keeps meta data and implements negative caching of failed requests.

Security Fix(es):

Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the request_header_max_size or reply_header_max_size settings are unchanged from the default. In Squid version 6.5 and later, the default setting of these parameters is safe. Squid will emit a critical warning in cache.log if the administrator is setting these parameters to unsafe values. Squid will not at this time prevent these settings from being changed to unsafe values. Users are advised to upgrade to version 6.5. There are no known workarounds for this vulnerability. This issue is also tracked as SQUID-2024:2(CVE-2024-25617)

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.

Security Fix(es):

• squid: denial of service in HTTP header parser (CVE-2024-25617)

• squid: Denial of Service in HTTP Chunked Decoding (CVE-2024-25111)

• squid: denial of service in HTTP request parsing (CVE-2023-50269)

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.

Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the request_header_max_size or reply_header_max_size settings are unchanged from the default. In Squid version 6.5 and later, the default setting of these parameters is safe. Squid will emit a critical warning in cache.log if the administrator is setting these parameters to unsafe values. Squid will not at this time prevent these settings from being changed to unsafe values. Users are advised to upgrade to version 6.5. There are no known workarounds for this vulnerability. This issue is also tracked as SQUID-2024:2

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.

Security Fix(es):

• squid: denial of service in HTTP header parser (CVE-2024-25617)
• squid: Denial of Service in HTTP Chunked Decoding (CVE-2024-25111)
• squid: denial of service in HTTP request parsing (CVE-2023-50269)

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.

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.

Security Fix(es):

• squid: denial of service in HTTP header parser (CVE-2024-25617)
• squid: Denial of Service in HTTP Chunked Decoding (CVE-2024-25111)
• squid: denial of service in HTTP request parsing (CVE-2023-50269)

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.

• SECURITY UPDATE: Denial of Service attack against HTTP header parsing
  • debian/patches/CVE-2024-25617.patch: Improve handling of expanding HTTP header values
  • CVE-2024-25617

• CVE-2024-25617: Improve handling of expanding HTTP header values to prevent DoS

• CVE-2024-25617: Improve handling of expanding HTTP header values to prevent DoS

• SECURITY UPDATE: Denial of Service attack against HTTP header parsing
  • debian/patches/CVE-2024-25617.patch: Improve handling of expanding HTTP header values
  • CVE-2024-25617

• CVE-2024-25617: Fix denial of service in HTTP header parser

• CVE-2024-25617: Fix denial of service in HTTP header parser

• CVE-2023-49285: Fix Buffer Overread bug to prevent Denial of Service attack
• CVE-2023-49286: Fix Incorrect Check of Function Return Value bug in Helper process management
• CVE-2023-50269: Fix Uncontrolled Recursion bug in HTTP Request parsing by limiting X-Forwarded-For header size to prevent Denial of Service attack.
• CVE-2024-25617: Fix Collapse of Data into Unsafe Value bug to prevent Denial of Service attack against HTTP header parsing

• CVE-2024-25617: Improve handling of expanding HTTP header values to prevent DoS

• CVE-2024-25617: Improve handling of expanding HTTP header values to prevent DoS

• SECURITY UPDATE: potential Denial of Service via TLS connection
  • debian/patches/CVE-2020-14058.patch: Fix sending of unknown validation errors to cert validator
  • CVE-2020-14058
• SECURITY UPDATE: improper Validation of Specified Index leads to Denial of Service via TLS Handshake vulnerability
  • debian/patches/CVE-2023-46724.patch: Fix validation of certificates with CN=* due to Buffer UnderRead in SSL CN Parsing issue (#1523)
  • CVE-2023-46724
• SECURITY UPDATE: denial of Service vulnerability in HTTP Chunked decoder due to uncontrolled recursion bug
  • debian/patches/CVE-2024-25111.patch: Fix infinite recursion when parsing HTTP chunks, prevent progress in call chain by stopping HttpStateData recursion
  • CVE-2024-25111
• SECURITY UPDATE: denial of Service vulnerability in the NTLM authentication credentials parser due to incorrect input validation
  • debian/patches/CVE-2020-8517.patch: Fix incorrect input validation allowing writing outside of buffer and leading to denial of service
  • CVE-2020-8517
• SECURITY UPDATE: denial of Service vulnerability against HTTP header parsing due to a Collapse of Data into Unsafe Value
  • debian/patches/CVE-2024-25617.patch: Improve handling of expanding HTTP header values to prevent DoS
  • CVE-2024-25617
• SECURITY UPDATE: denial of Service vulnerability by a trusted server
  • debian/rules: Disable ESI due to unfixed multiple issues in ESI causing DoS by a trusted server
  • debian/control: Remove dependencies used by ESI
  • CVE-2024-45802

Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using --with-openssl are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. (CVE-2023-46724) Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. (CVE-2023-49285) Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. (CVE-2023-49286) Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. (CVE-2023-50269) Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when generating error pages for Client Manager reports. (CVE-2024-23638) Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message. (CVE-2024-25111) Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the request_header_max_size or reply_header_max_size settings are unchanged from the default. (CVE-2024-25617)

These are all security issues fixed in the squid-6.8-1.1 package on the GA media of openSUSE Tumbleweed.

This update for squid fixes the following issues:

• CVE-2024-25617: Fixes denial of service in HTTP header parser (bsc#1219960)
• CVE-2024-25111: Fixes Chunked Encoding Stack Overflow (bsc#1216715)

This update for squid fixes the following issues:

• CVE-2024-25617: Fixes denial of service in HTTP header parser (bsc#1219960)
• CVE-2024-25111: Fixes Chunked Encoding Stack Overflow (bsc#1216715)

This update for squid fixes the following issues:

• CVE-2024-25617: Fixes denial of service in HTTP header parser (bsc#1219960)
• CVE-2024-25111: Fixes Chunked Encoding Stack Overflow (bsc#1216715)

Joshua Rogers discovered that Squid incorrectly handled collapsed forwarding. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-49288)

Joshua Rogers discovered that Squid incorrectly handled certain structural elements. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2023-5824)

Joshua Rogers discovered that Squid incorrectly handled Cache Manager error responses. A remote trusted client can possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2024-23638)

Joshua Rogers discovered that Squid incorrectly handled the HTTP Chunked decoder. A remote attacker could possibly use this issue to cause Squid to stop responding, resulting in a denial of service. (CVE-2024-25111)

Joshua Rogers discovered that Squid incorrectly handled HTTP header parsing. A remote trusted client can possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2024-25617)

Joshua Rogers discovered that Squid incorrectly handled requests with the urn: scheme. A remote attacker could possibly use this issue to cause Squid to consume resources, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2021-28651)

It was discovered that Squid incorrectly handled SSPI and SMB authentication. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly obtain sensitive information. This issue only affected Ubuntu 16.04 LTS. (CVE-2022-41318)

Joshua Rogers discovered that Squid incorrectly handled HTTP message processing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2023-49285)

Joshua Rogers discovered that Squid incorrectly handled Helper process management. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2023-49286)

Joshua Rogers discovered that Squid incorrectly handled HTTP request parsing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2023-50269, CVE-2024-25617)