High
golang-github-sylabs-sif, singularity-container — security advisory
SIF is an open source implementation of the Singularity Container Image Format. The `siftool new` command and func siftool.New() produce predictable UUID identifiers due to insecure randomness in the version of the `github.com/satori/go.uuid` module used as a dependency. A patch is available in version >= v1.2.3 of the module. Users are encouraged to upgrade. As a workaround, users passing CreateInfo struct should ensure the `ID` field is generated using a version of `github.com/satori/go.uuid` that is not vulnerable to this issue.
- Products
- golang-github-sylabs-sif, singularity-container
- Affected versions
- 1.0.9-1, 1.0.9-2.1, 1.0.9-2.1build1, 1.0.9-2.1ubuntu0.1, 2.21.0-1, 2.21.0-1build1, 2.23.0-1, 2.23.0-1ubuntu0.26.04.1~esm1, 2.24.1-1, 2.3.1-2, 2.3.2-1, 2.4.1-1, 2.4.2-2, 2.4.2-3, 2.4.2-4, 2.4.2-4ubuntu0.1~esm1, 2.8.3-2build1, 2.8.3-2ubuntu0.24.04.1, 2.8.3-2ubuntu0.24.04.2, 2.8.3-2ubuntu0.24.04.3, 4.1.1+ds2-1, 4.1.1+ds2-1build1, 4.1.1+ds2-1ubuntu0.1, 4.1.1+ds2-1ubuntu0.2, 4.1.1+ds2-1ubuntu0.2+esm1, 4.1.1+ds2-1ubuntu0.3, 4.1.1+ds2-1ubuntu0.3+esm1, 4.1.1+ds2-1ubuntu0.3+esm2, 4.1.5+ds4-1
- Fixed versions
- Not specified
- CVEs
- CVE-2021-29499
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:34 UTC · Revision 1
Source evidence
SIF is an open source implementation of the Singularity Container Image Format. The `siftool new` command and func siftool.New() produce predictable UUID identifiers due to insecure randomness in the version of the `github.com/satori/go.uuid` module used as a dependency. A patch is available in version >= v1.2.3 of the module. Users are encouraged to upgrade. As a workaround, users passing CreateInfo struct should ensure the `ID` field is generated using a version of `github.com/satori/go.uuid` that is not vulnerable to this issue.
osv:UBUNTU-CVE-2021-29499
singularity-container
Fixed versions: Not specified
golang-github-sylabs-sif
Fixed versions: Not specified
golang-github-sylabs-sif
Fixed versions: Not specified
golang-github-sylabs-sif
Fixed versions: Not specified
singularity-container
Fixed versions: Not specified
golang-github-sylabs-sif
Fixed versions: Not specified
singularity-container
Fixed versions: Not specified
golang-github-sylabs-sif
Fixed versions: Not specified
singularity-container
Fixed versions: Not specified
golang-github-sylabs-sif
Fixed versions: Not specified
Complete source record
{
"id": "2e72429f897749877c686ec152e8c48dcb12e135b6f3119900178b7e42c04388",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-29499",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2021-29499",
"summary": "SIF is an open source implementation of the Singularity Container Image Format. The `siftool new` command and func siftool.New() produce predictable UUID identifiers due to insecure randomness in the version of the `github.com/satori/go.uuid` module used as a dependency. A patch is available in version >= v1.2.3 of the module. Users are encouraged to upgrade. As a workaround, users passing CreateInfo struct should ensure the `ID` field is generated using a version of `github.com/satori/go.uuid` that is not vulnerable to this issue.",
"evidence": "osv:UBUNTU-CVE-2021-29499",
"products": [
{
"name": {
"value": "singularity-container",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.3.1-2",
"evidence": "/affected/0/versions"
},
{
"value": "2.3.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.4.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.4.2-2",
"evidence": "/affected/0/versions"
},
{
"value": "2.4.2-3",
"evidence": "/affected/0/versions"
},
{
"value": "2.4.2-4",
"evidence": "/affected/0/versions"
},
{
"value": "2.4.2-4ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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"affected_versions": [
{
"value": "1.0.9-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "1.0.9-2.1",
"evidence": "/affected/2/versions"
},
{
"value": "1.0.9-2.1build1",
"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
}
]
},
{
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"evidence": "/affected/3/package/name"
},
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{
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"evidence": "/affected/3/versions"
},
{
"value": "2.8.3-2ubuntu0.24.04.2",
"evidence": "/affected/3/versions"
},
{
"value": "2.8.3-2ubuntu0.24.04.3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
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},
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"affected_versions": [
{
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},
{
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"evidence": "/affected/4/versions"
},
{
"value": "4.1.1+ds2-1ubuntu0.1",
"evidence": "/affected/4/versions"
},
{
"value": "4.1.1+ds2-1ubuntu0.2",
"evidence": "/affected/4/versions"
},
{
"value": "4.1.1+ds2-1ubuntu0.2+esm1",
"evidence": "/affected/4/versions"
},
{
"value": "4.1.1+ds2-1ubuntu0.3",
"evidence": "/affected/4/versions"
},
{
"value": "4.1.1+ds2-1ubuntu0.3+esm1",
"evidence": "/affected/4/versions"
},
{
"value": "4.1.1+ds2-1ubuntu0.3+esm2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "golang-github-sylabs-sif",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.21.0-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "singularity-container",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.1.5+ds4-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "golang-github-sylabs-sif",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.23.0-1",
"evidence": "/affected/7/versions"
},
{
"value": "2.24.1-1",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "singularity-container",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.1.5+ds4-1",
"evidence": "/affected/8/versions"
}
]
},
{
"name": {
"value": "golang-github-sylabs-sif",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.21.0-1",
"evidence": "/affected/9/versions"
},
{
"value": "2.21.0-1build1",
"evidence": "/affected/9/versions"
},
{
"value": "2.23.0-1",
"evidence": "/affected/9/versions"
},
{
"value": "2.23.0-1ubuntu0.26.04.1~esm1",
"evidence": "/affected/9/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2021-29499",
"aliases": [
"UBUNTU-CVE-2021-29499"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/singularity-container?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
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"2.3.2-1",
"2.4.1-1",
"2.4.2-2",
"2.4.2-3",
"2.4.2-4",
"2.4.2-4ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29499.json"
},
"ecosystem_specific": {
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{
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"binary_version": "2.4.2-4ubuntu0.1~esm1"
}
]
}
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{
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"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.0.9-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29499.json"
},
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{
"binary_name": "golang-github-sylabs-sif-dev",
"binary_version": "1.0.9-1"
},
{
"binary_name": "siftool",
"binary_version": "1.0.9-1"
}
]
}
},
{
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"package": {
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"purl": "pkg:deb/ubuntu/golang-github-sylabs-sif?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.0.9-2.1",
"1.0.9-2.1build1",
"1.0.9-2.1ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29499.json"
},
"ecosystem_specific": {
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{
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"binary_version": "1.0.9-2.1ubuntu0.1"
},
{
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}
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"purl": "pkg:deb/ubuntu/singularity-container?arch=source&distro=esm-apps%2Fnoble",
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},
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},
{
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}
]
}
},
{
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"purl": "pkg:deb/ubuntu/golang-github-sylabs-sif?arch=source&distro=questing",
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},
"versions": [
"2.21.0-1"
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},
"ecosystem_specific": {
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{
"binary_name": "golang-github-sylabs-sif-dev",
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{
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],
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},
"versions": [
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],
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}
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}
},
{
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],
"package": {
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"purl": "pkg:deb/ubuntu/golang-github-sylabs-sif?arch=source&distro=esm-apps%2Fresolute",
"ecosystem": "Ubuntu:Pro:26.04:LTS"
},
"versions": [
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"2.21.0-1build1",
"2.23.0-1",
"2.23.0-1ubuntu0.26.04.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29499.json"
},
"ecosystem_specific": {
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{
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"binary_version": "2.23.0-1ubuntu0.26.04.1~esm1"
},
{
"binary_name": "siftool",
"binary_version": "2.23.0-1ubuntu0.26.04.1~esm1"
}
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}
],
"modified": "2026-10-17T12:55:45.768090440Z",
"provider": "osv",
"upstream": [
"CVE-2021-29499"
],
"references": [
"https://ubuntu.com/security/CVE-2021-29499",
"https://github.com/sylabs/sif/security/advisories/GHSA-4gh8-x3vv-phhg",
"https://www.cve.org/CVERecord?id=CVE-2021-29499",
"https://github.com/sylabs/sif/commit/193962882122abf85ff5f5bcc86404933e71c07d"
]
},
"related_cves": [
{
"value": "CVE-2021-29499",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 354034,
"published_at": "2021-05-07T21:15:00+00:00"
}