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Tracking
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Fri, 26 Jun 2026 02:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Thu, 25 Jun 2026 21:45:00 +0000
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| First Time appeared |
Socat
Socat socat |
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| Vendors & Products |
Socat
Socat socat |
Thu, 25 Jun 2026 16:45:00 +0000
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|---|---|---|
| Description | socat versions 1.8.0.0 through 1.8.1.1 contain a heap-based buffer overflow vulnerability that allows a malicious SOCKS5 proxy server to overwrite adjacent heap memory by exploiting a sign-extension flaw in the DOMAINNAME reply parser. During connection setup, the domain name length byte is read through a signed char field causing a negative bytes_to_read value that is implicitly converted to size_t, resulting in an unbounded heap write into the 262-byte reply buffer with attacker-controlled size and content. | |
| Title | socat 1.8.0.0 - 1.8.1.1 Heap Buffer Overflow via SOCKS5 Reply Parser | |
| Weaknesses | CWE-122 | |
| References |
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| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-06-26T02:03:38.239Z
Reserved: 2026-06-18T19:15:10.651Z
Link: CVE-2026-56123
Updated: 2026-06-26T02:03:33.293Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-25T21:30:11Z