Описание
Security update for python-urllib3
This update for python-urllib3 fixes the following issues:
- CVE-2026-97688: denial of service due to infinite loop during chunked Deflate decoding (bsc#1283909).
- CVE-2026-97689: denial of service due to unbounded memory allocation in chunk parser (bsc#1283910).
Список пакетов
Image SLES15-SP6-SAP-BYOS
Image SLES15-SP6-SAP-BYOS-GCE
Image SLES15-SP7-SAP-Azure
Image SLES15-SP7-SAP-Azure-3P
Image SLES15-SP7-SAP-BYOS-Azure
Image SLES15-SP7-SAP-BYOS-EC2
Image SLES15-SP7-SAP-BYOS-GCE
Image SLES15-SP7-SAP-GCE
Image SLES15-SP7-SAP-GCE-3P
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
SUSE Linux Enterprise Micro 5.3
SUSE Linux Enterprise Micro 5.4
SUSE Linux Enterprise Micro 5.5
SUSE Linux Enterprise Module for Basesystem 15 SP7
SUSE Linux Enterprise Server 15 SP4-LTSS
SUSE Linux Enterprise Server 15 SP5-LTSS
SUSE Linux Enterprise Server 15 SP6-LTSS
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP5
SUSE Linux Enterprise Server for SAP Applications 15 SP6
Ссылки
- Link for SUSE-SU-2026:4650-1
- E-Mail link for SUSE-SU-2026:4650-1
- SUSE Security Ratings
- SUSE Bug 1283909
- SUSE Bug 1283910
- SUSE CVE CVE-2026-97688 page
- SUSE CVE CVE-2026-97689 page
Описание
urllib3 is an HTTP client library for Python. From 2.6.2 until 2.8.0, HTTPResponse.stream and HTTPResponse.read_chunked can enter an infinite loop because the Deflate decoder retains trailing bytes as unconsumed input after reaching end-of-stream and repeatedly decodes them without progress. The issue occurs when an untrusted server sends a chunked Deflate response whose decoded body exceeds a positive finite chunk size and whose encoded body has trailing bytes, specifically a response with Transfer-Encoding: chunked and Content-Encoding: deflate, content decoding enabled, and the positive finite amt=N streaming chunk size. The attack mechanism is that a malicious server returns a compressed chunked response with trailing bytes after the Deflate stream. The impact is excessive CPU usage and a request that does not complete, and network read timeouts do not interrupt the loop because no further socket read occurs. This issue is fixed in version 2.8.0.
Затронутые продукты
Ссылки
- CVE-2026-97688
- SUSE Bug 1283909
Описание
urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.read_chunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigger is that a malicious server returns Transfer-Encoding: chunked followed by a very long run of bytes without a newline. The attack mechanism is that a malicious HTTP server sends a very long unterminated chunk-size line. The impact is that unbounded memory allocation can exhaust the client process. This issue is fixed in version 2.8.0.
Затронутые продукты
Ссылки
- CVE-2026-97689
- SUSE Bug 1283910