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Search Results (5 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-3945 1 Tinyproxy 1 Tinyproxy 2026-03-31 7.5 High
An integer overflow vulnerability in the HTTP chunked transfer encoding parser in tinyproxy up to and including version 1.11.3 allows an unauthenticated remote attacker to cause a denial of service (DoS). The issue occurs because chunk size values are parsed using strtol() without properly validating overflow conditions (e.g., errno == ERANGE). A crafted chunk size such as 0x7fffffffffffffff (LONG_MAX) bypasses the existing validation check (chunklen < 0), leading to a signed integer overflow during arithmetic operations (chunklen + 2). This results in incorrect size calculations, causing the proxy to attempt reading an extremely large amount of request-body data and holding worker connections open indefinitely. An attacker can exploit this behavior to exhaust all available worker slots, preventing new connections from being accepted and causing complete service unavailability. Upstream addressed this issue in commit bb7edc4; however, the latest stable release (1.11.3) remains affected at the time of publication.
CVE-2025-63938 2 Tinyproxy, Tinyproxy Project 2 Tinyproxy, Tinyproxy 2026-01-02 6.5 Medium
Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.
CVE-2023-49606 2 Tinyproxy, Tinyproxy Project 2 Tinyproxy, Tinyproxy 2025-11-04 9.8 Critical
A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0. A specially crafted HTTP header can trigger reuse of previously freed memory, which leads to memory corruption and could lead to remote code execution. An attacker needs to make an unauthenticated HTTP request to trigger this vulnerability.
CVE-2002-0847 1 Tinyproxy 1 Tinyproxy 2025-04-03 N/A
tinyproxy HTTP proxy 1.5.0, 1.4.3, and earlier allows remote attackers to execute arbitrary code via memory that is freed twice (double-free).
CVE-2001-0129 1 Tinyproxy 1 Tinyproxy 2025-04-03 N/A
Buffer overflow in Tinyproxy HTTP proxy 1.3.3 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long connect request.