High
Security advisory
An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-14681
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:10 UTC · Revision 1
Source evidence
An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite.
osv:CVE-2018-14681
Complete source record
{
"id": "fe48b1fac034d04a9f2153fa85b77a6febbf03b708aeb5bb5f2299c3e931390c",
"url": "https://osv.dev/vulnerability/CVE-2018-14681",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-14681",
"summary": "An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite.",
"evidence": "osv:CVE-2018-14681",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-14681",
"aliases": [
"CVE-2018-14681"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/kyz/libmspack",
"type": "GIT",
"events": [
{
"introduced": "25be5e56c1f140dfed754073c7dc374fd4d3010a"
},
{
"last_affected": "a2b36d2f477a183c046b66c731936fa56eba53b4"
},
{
"fixed": "0b0ef9344255ff5acfac6b7af09198ac9c9756c8"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:cabextract:libmspack:0.0.20060920:alpha:*:*:*:*:*:*",
"range": [
{
"introduced": "0.0.20060920-alpha"
},
{
"last_affected": "0.0.20060920-alpha"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:cabextract:libmspack:0.3:alpha:*:*:*:*:*:*",
"range": [
{
"introduced": "0.3-alpha"
},
{
"last_affected": "0.3-alpha"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:cabextract:libmspack:0.4:alpha:*:*:*:*:*:*",
"range": [
{
"introduced": "0.4-alpha"
},
{
"last_affected": "0.4-alpha"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:cabextract:libmspack:0.5:alpha:*:*:*:*:*:*",
"range": [
{
"introduced": "0.5-alpha"
},
{
"last_affected": "0.5-alpha"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:cabextract:libmspack:0.6:alpha:*:*:*:*:*:*",
"range": [
{
"introduced": "0.6-alpha"
},
{
"last_affected": "0.6-alpha"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "0b0ef9344255ff5acfac6b7af09198ac9c9756c8"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"0.0.20060920-alpha",
"0.3-alpha",
"0.4-alpha",
"0.5-alpha",
"0.6-alpha",
"v0.6alpha",
"v1.5",
"v0.5alpha",
"v0.4alpha",
"v1.4",
"v0.3alpha",
"v1.3",
"v1.2",
"v0.0.20060920alpha"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14681.json",
"vanir_signatures": [
{
"id": "CVE-2018-14681-ebb257ff",
"digest": {
"threshold": 0.9,
"line_hashes": [
"264125639601368245136278382040962299940",
"334718959738228674956836817475169085946",
"129263725176395171497904630117284598573",
"136055985965663008756139860224137290491",
"146921429704295347375559488414009961315",
"144048888467957435751834250567563075182",
"111846584464331271926986855392744924426",
"203836619199442944830654375939473252323",
"81676947660109281998418610702684930460",
"298075990359636591353990776340018337053",
"291184430367398170553833683326145169146",
"265994721061227409424378697157226067255",
"282128057683887539700009755939422265141",
"145568330504166830716940528839867775308",
"47732878296738844481897533567175310364",
"296738990979170437360220607543689989228",
"310121185771599670866381063311104525529",
"274428706265141814401783177908660083895",
"71631741594013791888316882536923655880",
"126237243167368149135907565162241690162",
"134367768589457487684380498779829148207"
]
},
"source": "https://github.com/kyz/libmspack/commit/0b0ef9344255ff5acfac6b7af09198ac9c9756c8",
"target": {
"file": "libmspack/mspack/kwajd.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2018-14681-f0630062",
"digest": {
"length": 2697,
"function_hash": "9188850034302970685971634658391947089"
},
"source": "https://github.com/kyz/libmspack/commit/0b0ef9344255ff5acfac6b7af09198ac9c9756c8",
"target": {
"file": "libmspack/mspack/kwajd.c",
"function": "kwajd_read_headers"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-24T14:11:02Z"
}
}
],
"modified": "2026-10-24T14:11:02.307864029Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2018:3327",
"https://access.redhat.com/errata/RHSA-2018:3505",
"https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html",
"https://security.gentoo.org/glsa/201903-20",
"https://usn.ubuntu.com/3728-1/",
"https://usn.ubuntu.com/3728-2/",
"https://usn.ubuntu.com/3728-3/",
"https://usn.ubuntu.com/3789-2/",
"https://www.debian.org/security/2018/dsa-4260",
"https://bugs.debian.org/904799",
"https://github.com/kyz/libmspack/commit/0b0ef9344255ff5acfac6b7af09198ac9c9756c8"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:cabextract_project:cabextract:*:*:*:*:*:*:*:*"
],
"vendor_product": "cabextract_project:cabextract",
"extracted_events": [
{
"range": [
{
"last_affected": "1.5"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
"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:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "12.04"
},
{
"last_affected": "12.04"
},
{
"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:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:redhat:ansible_tower:3.3:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:ansible_tower",
"extracted_events": [
{
"range": [
{
"introduced": "3.3"
},
{
"last_affected": "3.3"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_desktop",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"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_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-2018-14681",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 443210,
"published_at": "2018-07-28T23:29:00.343+00:00"
}