Critical
Security advisory
keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-19115
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:29 UTC · Revision 1
Source evidence
keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.
osv:CVE-2018-19115
Complete source record
{
"id": "8c23bc94511a4774e6b0d354142ac9fbc7ab48ee0a4e8fd19dc5458d992a1a0f",
"url": "https://osv.dev/vulnerability/CVE-2018-19115",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-19115",
"summary": "keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.",
"evidence": "osv:CVE-2018-19115",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2018-19115",
"aliases": [
"CVE-2018-19115"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/acassen/keepalived",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "c9e2da7a14513ae7979854afe57cd4cb0d1a3092"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:keepalived:keepalived:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.0.7"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v2.0.6",
"v2.0.5",
"v2.0.4",
"v2.0.3",
"v2.0.2",
"v2.0.1",
"v2.0.0",
"v1.4.5",
"v1.4.4",
"v1.4.3",
"v1.4.2",
"v1.4.1",
"v1.4.0",
"v1.3.9",
"v1.3.8",
"v1.3.7",
"v1.3.6",
"v1.3.5",
"v1.3.4",
"v1.3.3",
"v1.3.2",
"1.3.1",
"v1.3.0",
"v1.2.24",
"v1.2.23",
"v1.2.22",
"v1.2.21",
"v1.2.20",
"v1.2.19",
"v1.2.18",
"v1.2.17",
"v1.2.16",
"v1.2.15",
"v1.2.14",
"v1.2.13",
"v1.2.12",
"v1.2.11",
"v1.2.10",
"v1.2.9",
"v1.2.8",
"v1.2.7",
"v1.2.6",
"v1.2.5",
"v1.2.4",
"v1.2.3",
"v1.2.2",
"v1.2.1",
"v1.1.19",
"v1.1.18",
"v1.1.16",
"v1.1.15",
"v1.1.17",
"v1.1.12",
"v1.1.11",
"v1.1.13",
"v1.1.14",
"v1.1.10",
"v1.1.9",
"v1.1.8",
"v1.1.7",
"v1.1.4",
"v1.1.3",
"v1.1.5",
"v1.1.6",
"v1.0.3",
"v1.0.2",
"v1.1.0",
"v1.1.1",
"v1.1.2",
"v0.7.1",
"v0.6.10",
"v0.7.6",
"v1.0.0",
"v1.0.1",
"v0.6.9",
"v0.6.4",
"v0.6.3",
"v0.6.6",
"v0.6.8",
"v0.5.7",
"v0.5.6",
"v0.5.8",
"v0.5.9",
"v0.6.1",
"v0.6.2",
"v0.4.8",
"v0.4.1",
"v0.4.9",
"v0.4.9a",
"v0.5.3",
"v0.5.5",
"v0.2.6",
"v0.2.3",
"v0.2.7",
"v0.3.5",
"v0.3.6",
"v0.3.7",
"v0.3.8",
"v0.4.0",
"v0.2.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19115.json"
}
}
],
"modified": "2026-10-20T10:50:23.083135848Z",
"provider": "osv",
"references": [
"https://usn.ubuntu.com/3995-1/",
"https://usn.ubuntu.com/3995-2/",
"https://access.redhat.com/errata/RHSA-2019:0022",
"https://access.redhat.com/errata/RHSA-2019:1792",
"https://access.redhat.com/errata/RHSA-2019:1945",
"https://lists.debian.org/debian-lts-announce/2018/11/msg00034.html",
"https://security.gentoo.org/glsa/201903-01",
"https://bugzilla.suse.com/show_bug.cgi?id=1015141",
"https://github.com/acassen/keepalived/pull/961",
"https://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_aus",
"extracted_events": [
{
"range": [
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_eus",
"extracted_events": [
{
"range": [
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_tus",
"extracted_events": [
{
"range": [
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_workstation",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-19115",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 381648,
"published_at": "2018-11-08T20:29:00.573+00:00"
}