Medium
Security advisory
The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote servers to obtain sensitive information from process memory by requesting transmission of an entire buffer, as demonstrated by reading a private key.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-0777
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:57 UTC · Revision 1
Source evidence
The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote servers to obtain sensitive information from process memory by requesting transmission of an entire buffer, as demonstrated by reading a private key.
osv:CVE-2016-0777
Complete source record
{
"id": "a99b4deccd22d53f95e70cf09166ddf38bc0c8b372d79e05d6efbb42b6fbb616",
"url": "https://osv.dev/vulnerability/CVE-2016-0777",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-0777",
"summary": "The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote servers to obtain sensitive information from process memory by requesting transmission of an entire buffer, as demonstrated by reading a private key.",
"evidence": "osv:CVE-2016-0777",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-0777",
"aliases": [
"CVE-2016-0777"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/openssh/openssh-portable",
"type": "GIT",
"events": [
{
"introduced": "79a1bc918ffd2e81b5bd39cfdf87dfc81390fbb5"
},
{
"last_affected": "e91346dc2bbf460246df2ab591b7613908c1b0ad"
}
],
"database_specific": {
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{
"cpe": "cpe:2.3:a:openbsd:openssh:5.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.0"
},
{
"last_affected": "5.0"
}
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"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.0:p1:*:*:*:*:*:*",
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{
"introduced": "5.0-p1"
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{
"last_affected": "5.0-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.1"
},
{
"last_affected": "5.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.1:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "5.1-p1"
},
{
"last_affected": "5.1-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.2"
},
{
"last_affected": "5.2"
}
],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:5.2:p1:*:*:*:*:*:*",
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{
"introduced": "5.2-p1"
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{
"last_affected": "5.2-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.3"
},
{
"last_affected": "5.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.3:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "5.3-p1"
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{
"last_affected": "5.3-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.4"
},
{
"last_affected": "5.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.4:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "5.4-p1"
},
{
"last_affected": "5.4-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.5"
},
{
"last_affected": "5.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.5:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "5.5-p1"
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{
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],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:5.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.6"
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{
"last_affected": "5.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.6:p1:*:*:*:*:*:*",
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{
"introduced": "5.6-p1"
},
{
"last_affected": "5.6-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.7"
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{
"last_affected": "5.7"
}
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"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:5.7:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "5.7-p1"
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{
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],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.8:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "5.8-p1"
},
{
"last_affected": "5.8-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.9"
},
{
"last_affected": "5.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:5.9:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "5.9-p1"
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{
"last_affected": "5.9-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:6.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.0"
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{
"last_affected": "6.0"
}
],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.0:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "6.0-p1"
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{
"last_affected": "6.0-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:6.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.1"
},
{
"last_affected": "6.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:6.1:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "6.1-p1"
},
{
"last_affected": "6.1-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:6.2:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "6.2-p1"
},
{
"last_affected": "6.2-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:6.2:p2:*:*:*:*:*:*",
"range": [
{
"introduced": "6.2-p2"
},
{
"last_affected": "6.2-p2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:6.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.3"
},
{
"last_affected": "6.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:6.3:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "6.3-p1"
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{
"last_affected": "6.3-p1"
}
],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.4"
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{
"last_affected": "6.4"
}
],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.4:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "6.4-p1"
},
{
"last_affected": "6.4-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:6.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.5"
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{
"last_affected": "6.5"
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"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.5:p1:*:*:*:*:*:*",
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.6:*:*:*:*:*:*:*",
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{
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.6:p1:*:*:*:*:*:*",
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{
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.7:*:*:*:*:*:*:*",
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{
"last_affected": "6.7"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.7:p1:*:*:*:*:*:*",
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.8:*:*:*:*:*:*:*",
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{
"last_affected": "6.8"
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{
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{
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{
"last_affected": "6.8-p1"
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],
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.9"
},
{
"last_affected": "6.9"
}
],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:6.9:p1:*:*:*:*:*:*",
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{
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],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:openbsd:openssh:7.0:*:*:*:*:*:*:*",
"range": [
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"introduced": "7.0"
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{
"last_affected": "7.0"
}
],
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},
{
"cpe": "cpe:2.3:a:openbsd:openssh:7.0:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0-p1"
},
{
"last_affected": "7.0-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:openbsd:openssh:7.1:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "7.1-p1"
},
{
"last_affected": "7.1-p1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"5.0",
"5.1",
"5.2",
"5.3",
"5.4",
"5.5",
"5.6",
"5.7",
"5.8-p1",
"5.9",
"6.0",
"6.1",
"6.2-p1",
"6.2-p2",
"6.3",
"6.4",
"6.5",
"6.6",
"6.7",
"6.8",
"6.9",
"7.0",
"7.1-p1",
"V_7_1_P1",
"V_7_0_P1",
"V_6_9_P1",
"V_6_8_P1",
"V_6_6_P1",
"V_6_5_P1",
"V_6_2_P1",
"V_6_1_P1",
"V_6_0_P1",
"V_5_7_P1",
"V_5_5_P1",
"V_5_2_P1",
"V_5_1_P1",
"V_5_0_P1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-0777.json"
}
}
],
"modified": "2026-10-24T10:31:00.942674412Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf",
"https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/",
"https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/",
"https://bto.bluecoat.com/security-advisory/sa109",
"https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05247375",
"https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388",
"https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680",
"https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722",
"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:07.openssh.asc",
"https://security.gentoo.org/glsa/201601-01",
"https://support.apple.com/HT206167"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*"
],
"vendor_product": "apple:mac_os_x",
"extracted_events": [
{
"range": [
{
"last_affected": "10.11.3"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:hp:remote_device_access_virtual_customer_access_system:*:*:*:*:*:*:*:*"
],
"vendor_product": "hp:remote_device_access_virtual_customer_access_system",
"extracted_events": [
{
"range": [
{
"last_affected": "15.07"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:openbsd:openssh:5.8:*:*:*:*:*:*:*",
"cpe:2.3:a:openbsd:openssh:6.2:*:*:*:*:*:*:*",
"cpe:2.3:a:openbsd:openssh:7.1:*:*:*:*:*:*:*"
],
"vendor_product": "openbsd:openssh",
"extracted_events": [
{
"range": [
{
"introduced": "5.8"
},
{
"last_affected": "5.8"
},
{
"introduced": "6.2"
},
{
"last_affected": "6.2"
},
{
"introduced": "7.1"
},
{
"last_affected": "7.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:linux",
"extracted_events": [
{
"range": [
{
"introduced": "7"
},
{
"last_affected": "7"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:solaris",
"extracted_events": [
{
"range": [
{
"introduced": "11.3"
},
{
"last_affected": "11.3"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:sophos:unified_threat_management_software:9.318:*:*:*:*:*:*:*",
"cpe:2.3:a:sophos:unified_threat_management_software:9.353:*:*:*:*:*:*:*"
],
"vendor_product": "sophos:unified_threat_management_software",
"extracted_events": [
{
"range": [
{
"introduced": "9.318"
},
{
"last_affected": "9.318"
},
{
"introduced": "9.353"
},
{
"last_affected": "9.353"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-0777",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 439659,
"published_at": "2016-01-14T22:59:01.14+00:00"
}