Gnuwget
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Heap buffer overflow in GNU Wget through 1.25.0 allows a remote server to corrupt client-side memory by serving a crafted HTML page containing attributes with a large number of characters requiring entity encoding. The flaw originates in the `html_quote_string()` function in `src/convert.c`, where a signed integer counter overflows during output size accumulation, causing an undersized heap allocation; the subsequent copy phase then writes beyond that buffer's bounds. No public exploit code has been identified and no CISA KEV listing exists at time of analysis, but the memory corruption class warrants patching, particularly in environments where wget is used to fetch content from untrusted servers.
Heap buffer overflow in GNU Wget through 1.25.0 allows network-positioned attackers to corrupt heap memory by serving a maliciously crafted filename that triggers a flawed iconv E2BIG reallocation path in convert_fname() within src/url.c. The miscalculated remaining-space offset during reallocation writes beyond the allocated heap region, producing a high-availability impact (process crash) and limited integrity exposure. No public exploit has been identified at time of analysis and the vulnerability is not listed in CISA KEV; however, the fix is confirmed via upstream commit c2640fe on the official GNU Wget GitLab repository.
Integer overflow in GNU Wget through 1.25.0 allows a malicious or compromised web server to corrupt client download sessions by supplying crafted Content-Range response headers. The parse_content_range() function in src/http.c performs signed integer arithmetic on server-supplied values without overflow guards, triggering undefined behavior under C's signed overflow rules and causing download desynchronization on the affected client. No active exploitation has been confirmed (not in CISA KEV) and no public exploit code is known at time of analysis; real-world impact is bounded to availability disruption rather than host compromise based on current data.
Denial of service in GNU Wget through 1.25.0 lets a malicious or compromised HTTP(S) server crash the client by serving a Metalink document whose URL element contains only whitespace, causing clean_metalink_string() in src/metalink.c to decrement a pointer past the start of the heap buffer. The out-of-bounds read (CWE-125) produces abnormal program behavior and is reported by VulnCheck; there is no public exploit identified at time of analysis and it is not listed in CISA KEV. The fix landed upstream in GitLab commit 37a40fc.
Heap buffer overflow in GNU Wget through 1.25.0 allows a remote server to corrupt client-side memory by serving a crafted HTML page containing attributes with a large number of characters requiring entity encoding. The flaw originates in the `html_quote_string()` function in `src/convert.c`, where a signed integer counter overflows during output size accumulation, causing an undersized heap allocation; the subsequent copy phase then writes beyond that buffer's bounds. No public exploit code has been identified and no CISA KEV listing exists at time of analysis, but the memory corruption class warrants patching, particularly in environments where wget is used to fetch content from untrusted servers.
Heap buffer overflow in GNU Wget through 1.25.0 allows network-positioned attackers to corrupt heap memory by serving a maliciously crafted filename that triggers a flawed iconv E2BIG reallocation path in convert_fname() within src/url.c. The miscalculated remaining-space offset during reallocation writes beyond the allocated heap region, producing a high-availability impact (process crash) and limited integrity exposure. No public exploit has been identified at time of analysis and the vulnerability is not listed in CISA KEV; however, the fix is confirmed via upstream commit c2640fe on the official GNU Wget GitLab repository.
Integer overflow in GNU Wget through 1.25.0 allows a malicious or compromised web server to corrupt client download sessions by supplying crafted Content-Range response headers. The parse_content_range() function in src/http.c performs signed integer arithmetic on server-supplied values without overflow guards, triggering undefined behavior under C's signed overflow rules and causing download desynchronization on the affected client. No active exploitation has been confirmed (not in CISA KEV) and no public exploit code is known at time of analysis; real-world impact is bounded to availability disruption rather than host compromise based on current data.
Denial of service in GNU Wget through 1.25.0 lets a malicious or compromised HTTP(S) server crash the client by serving a Metalink document whose URL element contains only whitespace, causing clean_metalink_string() in src/metalink.c to decrement a pointer past the start of the heap buffer. The out-of-bounds read (CWE-125) produces abnormal program behavior and is reported by VulnCheck; there is no public exploit identified at time of analysis and it is not listed in CISA KEV. The fix landed upstream in GitLab commit 37a40fc.