High
Security advisory
sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS message, as demonstrated by Honggfuzz, related to kex.c and packet.c.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-10708
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:28 UTC · Revision 1
Source evidence
sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS message, as demonstrated by Honggfuzz, related to kex.c and packet.c.
osv:CVE-2016-10708
Complete source record
{
"id": "8c726c5cc4cdfa21e8fd4355d36af94f5e8e85901732b7b762e08789780bec6f",
"url": "https://osv.dev/vulnerability/CVE-2016-10708",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-10708",
"summary": "sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS message, as demonstrated by Honggfuzz, related to kex.c and packet.c.",
"evidence": "osv:CVE-2016-10708",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-10708",
"aliases": [
"CVE-2016-10708"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/openssh/openssh-portable",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "4a354fc231174901f2629437c2a6e924a2dd6772"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "7.4"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"V_7_3_P1",
"V_7_2_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",
"V_4_2_P1",
"V_3_9_P1",
"V_3_8_P1",
"AFTER_KRB5_GSSAPI_MERGE",
"BEFORE_KRB5_GSSAPI_MERGE",
"POST_KRB4_REMOVAL",
"PRE_KRB4_REMOVAL",
"AFTER_FREEBSD_PAM_MERGE",
"BEFORE_FREEBSD_PAM_MERGE",
"V_3_6_1_P1",
"V_3_4_P1",
"V_3_2_2_P1",
"PRE_SW_KRBV",
"V_3_1_P1",
"V_3_0_1_P1",
"V_3_0_P1",
"V_2_5_2_P1",
"V_2_5_1_P2",
"V_2_5_1_P1",
"V_2_5_0_P1",
"PRE-REORDER",
"V_2_3_0_P1",
"PRE_CYGWIN_MERGE",
"V_2_2_0_P1",
"V_2_1_1_P4",
"V_2_1_1_P3",
"ABOUT_TO_ADD_INET_ATON",
"V_2_1_1_P2",
"V_2_1_1_P1",
"PRE_NEW_LOGIN_CODE",
"V_2_1_0_P3",
"V_2_1_0_P2",
"V_2_1_0_P1",
"V_2_1_0",
"V_2_0_0_BETA2",
"V_2_0_0_BETA1",
"V_2_0_0_TEST1",
"V_1_2_3_TEST3",
"V_1_2_3_TEST2",
"V_1_2_3_TEST1",
"V_1_2_3",
"V_1_2_3_PRE5",
"V_1_2_3_PRE4",
"V_1_2_3_PRE3",
"V_1_2_3_PRE2",
"V_1_2_3_PRE1",
"V_1_2_2_P1",
"V_1_2_2",
"V_1_2_2_PRE29",
"V_1_2_2_PRE28",
"V_1_2_1_PRE27",
"V_1_2_1_PRE26",
"PRE_IPV6",
"V_1_2_1_PRE25",
"V_1_2_1_PRE24",
"V_1_2_1_PRE23",
"V_1_2_1_PRE22",
"PRE_FIXPATHS_INTEGRATION",
"V_1_2_1_PRE21",
"V_1_2_1_PRE20",
"V_1_2_1_PRE19",
"PRE_HPUX_INTEGRATION",
"V_1_2_1_PRE18",
"V_1_2PRE17",
"V_1_2_PRE16",
"V_1_2_PRE15",
"V_1_2_PRE14",
"V_1_2_PRE13",
"V_1_2_PRE12",
"V_1_2_PRE11",
"V_1_2_PRE10",
"V_1_2_PRE9",
"V_1_2_PRE8",
"V_1_2_PRE7",
"V_1_2_PRE6",
"V_1_2_PRE5",
"V_1_2_PRE4",
"PRE_DAN_PATCH_MERGE"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-10708.json"
}
}
],
"modified": "2026-10-24T10:30:29.171113495Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf",
"https://kc.mcafee.com/corporate/index?page=content&id=SB10284",
"https://support.f5.com/csp/article/K32485746?utm_source=f5support&%3Butm_medium=RSS",
"https://lists.debian.org/debian-lts-announce/2018/01/msg00031.html",
"https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html",
"https://security.netapp.com/advisory/ntap-20180423-0003/",
"https://usn.ubuntu.com/3809-1/",
"https://www.openssh.com/releasenotes.html",
"https://anongit.mindrot.org/openssh.git/commit/?id=28652bca29046f62c7045e933e6b931de1d16737"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:netapp:oncommand_unified_manager:*:*:*:*:*:vsphere:*:*"
],
"vendor_product": "netapp:oncommand_unified_manager",
"extracted_events": [
{
"range": [
{
"introduced": "9.4"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
},
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-10708",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 432246,
"published_at": "2018-01-21T22:29:00.227+00:00"
}