HighFix available
italc, krfb and 5 more products — security advisory
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
- Products
- italc, krfb, libvncserver, tightvnc, veyon, vino, x11vnc
- Affected versions
- 0.9.10+dfsg-3, 0.9.10+dfsg-3build1, 0.9.10+dfsg-3ubuntu0.16.04.1, 0.9.10+dfsg-3ubuntu0.16.04.2, 0.9.10+dfsg-3ubuntu0.16.04.3, 0.9.11+dfsg-1, 0.9.11+dfsg-1ubuntu1, 0.9.11+dfsg-1ubuntu1.1, 0.9.13-1.1, 1.3.10-0ubuntu2, 1.3.10-0ubuntu3, 1.3.10-0ubuntu4, 1.3.10-0ubuntu5, 1.3.9-6.4, 1.3.9-6.4ubuntu1, 1:1.3.10-10, 1:1.3.10-10build1, 1:1.3.10-11, 1:1.3.10-3, 1:1.3.10-5, 1:1.3.10-7, 1:1.3.10-7build1, 1:1.3.10-7build2, 1:1.3.10-8, 1:1.3.10-9, 1:2.0.2+dfsg1-3, 1:2.0.2+dfsg1-4, 1:3.0.3+dfsg1-1, 1:3.0.3+dfsg1-2, 1:3.0.3+dfsg1-2build1, 1:3.0.3+dfsg1-2ubuntu1, 1:3.0.3+dfsg1-3, 3.22.0-2ubuntu1, 3.22.0-3ubuntu1, 3.22.0-5ubuntu2, 3.8.1-0ubuntu12, 3.8.1-0ubuntu6, 3.8.1-0ubuntu7, 3.8.1-0ubuntu8, 3.8.1-0ubuntu9, 3.8.1-0ubuntu9.1, 3.8.1-0ubuntu9.2, 4.2.4+repack1-2, 4.2.5+repack1-1, 4.3.1+repack1-1, 4.3.1+repack1-2, 4.3.1+repack1-2build1, 4.3.1+repack1-2build2, 4.5.3+repack1-1build1, 4.5.3+repack1-1build2, 4.7.5+repack1-1build2, 4.7.5+repack1-1ubuntu1, 4.7.5+repack1-1ubuntu3, 4.7.5+repack1-1ubuntu4, 4.7.5+repack1-1ubuntu5, 4.7.5+repack1-1ubuntu6, 4.7.5+repack1-1ubuntu7, 4.9.7+repack1-1, 4.9.7+repack1-1.1, 4.9.7+repack1-1.1build1, 4.9.7+repack1-1.1build2, 4.9.7+repack1-1build1, 4:15.08.2-0ubuntu1, 4:15.12.1-1ubuntu1, 4:15.12.3-0ubuntu1, 4:17.04.3-0ubuntu1, 4:17.08.3-0ubuntu1, 4:17.12.2-0ubuntu1, 4:17.12.3-0ubuntu1, 4:19.04.3-0ubuntu2, 4:19.08.3-0ubuntu1, 4:19.08.3-0ubuntu2, 4:19.12.0-0ubuntu1, 4:19.12.1-0ubuntu1, 4:19.12.2-0ubuntu1, 4:19.12.2-1, 4:19.12.3-0ubuntu1, 4:19.12.3-1, 4:21.08.1-0ubuntu1, 4:21.08.3-0ubuntu1, 4:21.11.80-0ubuntu1, 4:21.11.90-0ubuntu1, 4:21.11.90-0ubuntu2, 4:21.12.0-0ubuntu1, 4:21.12.1-0ubuntu1, 4:21.12.2-0ubuntu1, 4:21.12.3-0ubuntu1, 4:23.08.1-0ubuntu1, 4:23.08.2-0ubuntu1, 4:23.08.3-0ubuntu1, 4:23.08.4-0ubuntu1, 4:23.08.5-0ubuntu1, 4:23.08.5-0ubuntu2, 4:23.08.5-0ubuntu3, 4:24.12.3-0ubuntu2, 4:25.04.0-0ubuntu1, 4:25.04.1-0ubuntu1, 4:25.04.2-0ubuntu1, 4:25.04.2-1, 4:25.04.3-0ubuntu1, 4:25.07.80-0ubuntu1, 4:25.07.90-0ubuntu1, 4:25.08.0-0ubuntu1, 4:25.08.1-0ubuntu1, 4:25.08.1-0ubuntu2, 4:25.08.2-0ubuntu1, 4:25.08.3-0ubuntu1, 4:25.11.80-0ubuntu1, 4:25.11.90-0ubuntu1, 4:25.12.0-0ubuntu1, 4:25.12.1-0ubuntu1, 4:25.12.1-1ubuntu1, 4:25.12.2-0ubuntu1, 4:25.12.2-0ubuntu3, 4:25.12.3-0ubuntu1, 4:26.04.0-1ubuntu1, 4:26.04.1-0ubuntu1, 4:26.04.2-0ubuntu1, 4:26.04.3-0ubuntu1, 4:26.07.90-0ubuntu1, 4:26.08.0-0ubuntu1, 4:26.08.0-0ubuntu2, 4:26.08.1-0ubuntu1
- Fixed versions
- 0.9.10+dfsg-3ubuntu0.16.04.4, 0.9.11+dfsg-1ubuntu1.2, 1.3.9-6.5+deb8u1build0.14.04.1~esm1, 1:2.0.2+dfsg1-4ubuntu0.1, 1:3.0.3+dfsg1-3ubuntu0.1, 3.22.0-3ubuntu1.1, 3.22.0-5ubuntu2.1, 3.8.1-0ubuntu9.3
- CVEs
- CVE-2019-15681
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:31 UTC · Revision 1
Source evidence
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
osv:UBUNTU-CVE-2019-15681
tightvnc
Fixed versions: 1.3.9-6.5+deb8u1build0.14.04.1~esm1
x11vnc
Fixed versions: Not specified
italc
Fixed versions: 1:2.0.2+dfsg1-4ubuntu0.1
libvncserver
Fixed versions: 0.9.10+dfsg-3ubuntu0.16.04.4
vino
Fixed versions: 3.8.1-0ubuntu9.3
krfb
Fixed versions: Not specified
tightvnc
Fixed versions: Not specified
italc
Fixed versions: 1:3.0.3+dfsg1-3ubuntu0.1
libvncserver
Fixed versions: 0.9.11+dfsg-1ubuntu1.2
vino
Fixed versions: 3.22.0-3ubuntu1.1
krfb
Fixed versions: Not specified
tightvnc
Fixed versions: Not specified
vino
Fixed versions: 3.22.0-5ubuntu2.1
krfb
Fixed versions: Not specified
tightvnc
Fixed versions: Not specified
veyon
Fixed versions: Not specified
krfb
Fixed versions: Not specified
tightvnc
Fixed versions: Not specified
veyon
Fixed versions: Not specified
krfb
Fixed versions: Not specified
tightvnc
Fixed versions: Not specified
veyon
Fixed versions: Not specified
krfb
Fixed versions: Not specified
tightvnc
Fixed versions: Not specified
veyon
Fixed versions: Not specified
krfb
Fixed versions: Not specified
tightvnc
Fixed versions: Not specified
veyon
Fixed versions: Not specified
krfb
Fixed versions: Not specified
tightvnc
Fixed versions: Not specified
veyon
Fixed versions: Not specified
Complete source record
{
"id": "5b2a5634c9422fca28d272d595dd12f6f78f754671a96b2318afb978bd232de7",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-15681",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2019-15681",
"summary": "LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.",
"evidence": "osv:UBUNTU-CVE-2019-15681",
"products": [
{
"name": {
"value": "tightvnc",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.3.9-6.5+deb8u1build0.14.04.1~esm1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1.3.9-6.4",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.9-6.4ubuntu1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "x11vnc",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.13-1.1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "italc",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.0.2+dfsg1-4ubuntu0.1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "1:2.0.2+dfsg1-3",
"evidence": "/affected/2/versions"
},
{
"value": "1:2.0.2+dfsg1-4",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "libvncserver",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.9.10+dfsg-3ubuntu0.16.04.4",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": [
{
"value": "0.9.10+dfsg-3",
"evidence": "/affected/3/versions"
},
{
"value": "0.9.10+dfsg-3build1",
"evidence": "/affected/3/versions"
},
{
"value": "0.9.10+dfsg-3ubuntu0.16.04.1",
"evidence": "/affected/3/versions"
},
{
"value": "0.9.10+dfsg-3ubuntu0.16.04.2",
"evidence": "/affected/3/versions"
},
{
"value": "0.9.10+dfsg-3ubuntu0.16.04.3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "vino",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.8.1-0ubuntu9.3",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": [
{
"value": "3.8.1-0ubuntu6",
"evidence": "/affected/4/versions"
},
{
"value": "3.8.1-0ubuntu7",
"evidence": "/affected/4/versions"
},
{
"value": "3.8.1-0ubuntu8",
"evidence": "/affected/4/versions"
},
{
"value": "3.8.1-0ubuntu9",
"evidence": "/affected/4/versions"
},
{
"value": "3.8.1-0ubuntu9.1",
"evidence": "/affected/4/versions"
},
{
"value": "3.8.1-0ubuntu9.2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "krfb",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4:15.08.2-0ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "4:15.12.1-1ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "4:15.12.3-0ubuntu1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "tightvnc",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.3.10-0ubuntu2",
"evidence": "/affected/6/versions"
},
{
"value": "1.3.10-0ubuntu3",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "italc",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:3.0.3+dfsg1-3ubuntu0.1",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": [
{
"value": "1:3.0.3+dfsg1-1",
"evidence": "/affected/7/versions"
},
{
"value": "1:3.0.3+dfsg1-2",
"evidence": "/affected/7/versions"
},
{
"value": "1:3.0.3+dfsg1-2build1",
"evidence": "/affected/7/versions"
},
{
"value": "1:3.0.3+dfsg1-2ubuntu1",
"evidence": "/affected/7/versions"
},
{
"value": "1:3.0.3+dfsg1-3",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "libvncserver",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.9.11+dfsg-1ubuntu1.2",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": [
{
"value": "0.9.11+dfsg-1",
"evidence": "/affected/8/versions"
},
{
"value": "0.9.11+dfsg-1ubuntu1",
"evidence": "/affected/8/versions"
},
{
"value": "0.9.11+dfsg-1ubuntu1.1",
"evidence": "/affected/8/versions"
}
]
},
{
"name": {
"value": "vino",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.22.0-3ubuntu1.1",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": [
{
"value": "3.8.1-0ubuntu12",
"evidence": "/affected/9/versions"
},
{
"value": "3.22.0-2ubuntu1",
"evidence": "/affected/9/versions"
},
{
"value": "3.22.0-3ubuntu1",
"evidence": "/affected/9/versions"
}
]
},
{
"name": {
"value": "krfb",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4:17.04.3-0ubuntu1",
"evidence": "/affected/10/versions"
},
{
"value": "4:17.08.3-0ubuntu1",
"evidence": "/affected/10/versions"
},
{
"value": "4:17.12.2-0ubuntu1",
"evidence": "/affected/10/versions"
},
{
"value": "4:17.12.3-0ubuntu1",
"evidence": "/affected/10/versions"
}
]
},
{
"name": {
"value": "tightvnc",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.3.10-0ubuntu3",
"evidence": "/affected/11/versions"
},
{
"value": "1.3.10-0ubuntu4",
"evidence": "/affected/11/versions"
}
]
},
{
"name": {
"value": "vino",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.22.0-5ubuntu2.1",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": [
{
"value": "3.22.0-5ubuntu2",
"evidence": "/affected/12/versions"
}
]
},
{
"name": {
"value": "krfb",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4:19.04.3-0ubuntu2",
"evidence": "/affected/13/versions"
},
{
"value": "4:19.08.3-0ubuntu1",
"evidence": "/affected/13/versions"
},
{
"value": "4:19.08.3-0ubuntu2",
"evidence": "/affected/13/versions"
},
{
"value": "4:19.12.0-0ubuntu1",
"evidence": "/affected/13/versions"
},
{
"value": "4:19.12.1-0ubuntu1",
"evidence": "/affected/13/versions"
},
{
"value": "4:19.12.2-0ubuntu1",
"evidence": "/affected/13/versions"
},
{
"value": "4:19.12.2-1",
"evidence": "/affected/13/versions"
},
{
"value": "4:19.12.3-0ubuntu1",
"evidence": "/affected/13/versions"
},
{
"value": "4:19.12.3-1",
"evidence": "/affected/13/versions"
}
]
},
{
"name": {
"value": "tightvnc",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.3.10-0ubuntu5",
"evidence": "/affected/14/versions"
}
]
},
{
"name": {
"value": "veyon",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.2.4+repack1-2",
"evidence": "/affected/15/versions"
},
{
"value": "4.2.5+repack1-1",
"evidence": "/affected/15/versions"
},
{
"value": "4.3.1+repack1-1",
"evidence": "/affected/15/versions"
},
{
"value": "4.3.1+repack1-2",
"evidence": "/affected/15/versions"
},
{
"value": "4.3.1+repack1-2build1",
"evidence": "/affected/15/versions"
},
{
"value": "4.3.1+repack1-2build2",
"evidence": "/affected/15/versions"
}
]
},
{
"name": {
"value": "krfb",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4:21.08.1-0ubuntu1",
"evidence": "/affected/16/versions"
},
{
"value": "4:21.08.3-0ubuntu1",
"evidence": "/affected/16/versions"
},
{
"value": "4:21.11.80-0ubuntu1",
"evidence": "/affected/16/versions"
},
{
"value": "4:21.11.90-0ubuntu1",
"evidence": "/affected/16/versions"
},
{
"value": "4:21.11.90-0ubuntu2",
"evidence": "/affected/16/versions"
},
{
"value": "4:21.12.0-0ubuntu1",
"evidence": "/affected/16/versions"
},
{
"value": "4:21.12.1-0ubuntu1",
"evidence": "/affected/16/versions"
},
{
"value": "4:21.12.2-0ubuntu1",
"evidence": "/affected/16/versions"
},
{
"value": "4:21.12.3-0ubuntu1",
"evidence": "/affected/16/versions"
}
]
},
{
"name": {
"value": "tightvnc",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.3.10-3",
"evidence": "/affected/17/versions"
},
{
"value": "1:1.3.10-5",
"evidence": "/affected/17/versions"
}
]
},
{
"name": {
"value": "veyon",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.5.3+repack1-1build1",
"evidence": "/affected/18/versions"
},
{
"value": "4.5.3+repack1-1build2",
"evidence": "/affected/18/versions"
}
]
},
{
"name": {
"value": "krfb",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4:23.08.1-0ubuntu1",
"evidence": "/affected/19/versions"
},
{
"value": "4:23.08.2-0ubuntu1",
"evidence": "/affected/19/versions"
},
{
"value": "4:23.08.3-0ubuntu1",
"evidence": "/affected/19/versions"
},
{
"value": "4:23.08.4-0ubuntu1",
"evidence": "/affected/19/versions"
},
{
"value": "4:23.08.5-0ubuntu1",
"evidence": "/affected/19/versions"
},
{
"value": "4:23.08.5-0ubuntu2",
"evidence": "/affected/19/versions"
},
{
"value": "4:23.08.5-0ubuntu3",
"evidence": "/affected/19/versions"
}
]
},
{
"name": {
"value": "tightvnc",
"evidence": "/affected/20/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.3.10-7",
"evidence": "/affected/20/versions"
},
{
"value": "1:1.3.10-7build1",
"evidence": "/affected/20/versions"
},
{
"value": "1:1.3.10-7build2",
"evidence": "/affected/20/versions"
},
{
"value": "1:1.3.10-8",
"evidence": "/affected/20/versions"
}
]
},
{
"name": {
"value": "veyon",
"evidence": "/affected/21/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.7.5+repack1-1build2",
"evidence": "/affected/21/versions"
},
{
"value": "4.7.5+repack1-1ubuntu1",
"evidence": "/affected/21/versions"
},
{
"value": "4.7.5+repack1-1ubuntu3",
"evidence": "/affected/21/versions"
},
{
"value": "4.7.5+repack1-1ubuntu4",
"evidence": "/affected/21/versions"
},
{
"value": "4.7.5+repack1-1ubuntu5",
"evidence": "/affected/21/versions"
}
]
},
{
"name": {
"value": "krfb",
"evidence": "/affected/22/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4:24.12.3-0ubuntu2",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.04.0-0ubuntu1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.04.1-0ubuntu1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.04.2-0ubuntu1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.04.2-1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.04.3-0ubuntu1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.07.80-0ubuntu1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.07.90-0ubuntu1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.08.0-0ubuntu1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.08.1-0ubuntu1",
"evidence": "/affected/22/versions"
},
{
"value": "4:25.08.1-0ubuntu2",
"evidence": "/affected/22/versions"
}
]
},
{
"name": {
"value": "tightvnc",
"evidence": "/affected/23/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
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"modified": "2026-10-17T12:55:36.518977895Z",
"provider": "osv",
"upstream": [
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],
"references": [
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"https://ubuntu.com/security/notices/USN-4407-1",
"https://ubuntu.com/security/notices/USN-4547-1",
"https://ubuntu.com/security/notices/USN-4573-1",
"https://ubuntu.com/security/notices/USN-4587-1",
"https://www.cve.org/CVERecord?id=CVE-2019-15681"
]
},
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"evidence": "/upstream"
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],
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"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 353901,
"published_at": "2019-10-29T19:15:00+00:00"
}