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| Rule General Information |
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| Release Date: | 2019-08-13 | |
| Rule Name: | Squid Proxy HttpHeader getAuth Heap Buffer Overflow Vulnerability -2 (CVE-2019-12527) | |
| Severity: | ||
| CVE ID: | ||
| Rule Protection Details |
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| Description: | An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data. | |
| Impact: | A buffer overflow vulnerability can be triggered by an attacker in the context of the vulnerable product. Further attacks includes arbitrary code execution and denial of service. | |
| Affected OS: | Windows, Others | |
| Reference: | SecurityFocusBID:109143 http://www.squid-cache.org/Versions/v4/changesets/ http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch https://github.com/squid-cache/squid/commits/v4 |
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| Solutions |
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| The vendors have released upgrade patches to fix vulnerabilities, please visit: https://github.com/squid-cache/squid/commits/v4 |