Uriparser
Monthly
The EqualsUri function in uriparser before version 1.0.2 incorrectly classifies structurally distinct URIs as equivalent due to flawed absolutePath comparison logic when a host is present. An attacker can craft two different URIs that the library treats as identical, potentially bypassing URI-based access control checks or authentication mechanisms that rely on URI comparison. The vulnerability affects all versions before 1.0.2 and requires local access with high attack complexity; the impact is limited to integrity (logic bypass) with no confidentiality or availability impact.
Pointer difference truncation to signed int in uriparser before version 1.0.2 allows local attackers to cause integer overflow and data integrity issues through specially crafted URI inputs. The vulnerability stems from unsafe casting of pointer arithmetic results (afterLast - first) to int, which can overflow on systems where pointer differences exceed INT_MAX, leading to buffer overflows, incorrect memory calculations, and potential information disclosure. While CVSS score is low (2.9) due to local attack vector and high complexity, the fix adds comprehensive overflow detection using SIZE_MAX checks, indicating real risk in applications processing untrusted URIs locally.
uriparser before 1.0.1 suffers a numeric truncation vulnerability in text range comparison that causes denial of service when processing URIs with gigabyte-scale lengths. The flaw occurs because internal range comparisons truncate large numeric values, allowing maliciously crafted oversized URIs to bypass length validation and trigger memory exhaustion or processing failures. Local attackers can exploit this via specially constructed input, though practical exploitation requires an application to accept and process URIs of exceptional size.
An issue was discovered in uriparser before 0.9.0. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
An issue was discovered in uriparser before 0.9.0. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Integer Overflow vulnerability could allow attackers to cause unexpected behavior through arithmetic overflow.
An issue was discovered in uriparser before 0.9.0. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Write vulnerability could allow attackers to write data beyond allocated buffer boundaries leading to code execution or crashes.
The EqualsUri function in uriparser before version 1.0.2 incorrectly classifies structurally distinct URIs as equivalent due to flawed absolutePath comparison logic when a host is present. An attacker can craft two different URIs that the library treats as identical, potentially bypassing URI-based access control checks or authentication mechanisms that rely on URI comparison. The vulnerability affects all versions before 1.0.2 and requires local access with high attack complexity; the impact is limited to integrity (logic bypass) with no confidentiality or availability impact.
Pointer difference truncation to signed int in uriparser before version 1.0.2 allows local attackers to cause integer overflow and data integrity issues through specially crafted URI inputs. The vulnerability stems from unsafe casting of pointer arithmetic results (afterLast - first) to int, which can overflow on systems where pointer differences exceed INT_MAX, leading to buffer overflows, incorrect memory calculations, and potential information disclosure. While CVSS score is low (2.9) due to local attack vector and high complexity, the fix adds comprehensive overflow detection using SIZE_MAX checks, indicating real risk in applications processing untrusted URIs locally.
uriparser before 1.0.1 suffers a numeric truncation vulnerability in text range comparison that causes denial of service when processing URIs with gigabyte-scale lengths. The flaw occurs because internal range comparisons truncate large numeric values, allowing maliciously crafted oversized URIs to bypass length validation and trigger memory exhaustion or processing failures. Local attackers can exploit this via specially constructed input, though practical exploitation requires an application to accept and process URIs of exceptional size.
An issue was discovered in uriparser before 0.9.0. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
An issue was discovered in uriparser before 0.9.0. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Integer Overflow vulnerability could allow attackers to cause unexpected behavior through arithmetic overflow.
An issue was discovered in uriparser before 0.9.0. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Write vulnerability could allow attackers to write data beyond allocated buffer boundaries leading to code execution or crashes.