Medium
alsa-lib — security advisory
alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.
- Products
- alsa-lib
- Affected versions
- 1.0.27.2-1ubuntu6, 1.0.27.2-1ubuntu7, 1.0.27.2-3ubuntu1, 1.0.27.2-3ubuntu2, 1.0.27.2-3ubuntu5, 1.0.27.2-3ubuntu6, 1.0.27.2-3ubuntu7, 1.0.29-0ubuntu1, 1.1.0-0ubuntu1, 1.1.3-5, 1.1.3-5ubuntu0.1, 1.1.3-5ubuntu0.2, 1.1.3-5ubuntu0.4, 1.1.3-5ubuntu0.5, 1.1.3-5ubuntu0.6, 1.1.9-0ubuntu1, 1.2.1.2-2ubuntu2, 1.2.10-1, 1.2.10-2, 1.2.10-3, 1.2.10-3build1, 1.2.11-1build1, 1.2.11-1build2, 1.2.11-1ubuntu0.1, 1.2.11-1ubuntu0.2, 1.2.11-1ubuntu0.3, 1.2.14-1ubuntu1, 1.2.14-2ubuntu1, 1.2.15-2, 1.2.15.1-1, 1.2.15.3-1, 1.2.15.3-1build1, 1.2.15.3-1ubuntu1, 1.2.15.3-1ubuntu1.1, 1.2.16.1-1, 1.2.2-2.1, 1.2.2-2.1ubuntu1, 1.2.2-2.1ubuntu2, 1.2.2-2.1ubuntu2.1, 1.2.2-2.1ubuntu2.2, 1.2.2-2.1ubuntu2.3, 1.2.2-2.1ubuntu2.4, 1.2.2-2.1ubuntu2.5, 1.2.2-2.1ubuntu2.5+esm1, 1.2.2-2ubuntu1, 1.2.4-1.1ubuntu3, 1.2.4-1.1ubuntu4, 1.2.5.1-1ubuntu1, 1.2.6.1-1ubuntu1, 1.2.6.1-1ubuntu1.1, 1.2.6.1-1ubuntu1.2, 1.2.9-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-90781
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:31 UTC · Revision 1
Source evidence
alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.
osv:UBUNTU-CVE-2026-90781
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
Complete source record
{
"id": "e32da7a32351eeff59a3d936ea0950810bdcd35436f2708f6a021862931b54e3",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-90781",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-90781",
"summary": "alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.",
"evidence": "osv:UBUNTU-CVE-2026-90781",
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{
"name": {
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{
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{
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{
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{
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{
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"aliases": [
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},
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],
"modified": "2026-10-17T13:01:16.783265951Z",
"provider": "osv",
"upstream": [
"CVE-2026-90781"
],
"references": [
"https://ubuntu.com/security/CVE-2026-90781",
"https://www.cve.org/CVERecord?id=CVE-2026-90781",
"https://lore.kernel.org/alsa-devel/CACBQ=P2FhO3M6dkv3cWuKb6Qhs92ouV+FJ3SJZ_PVBSSdJWRAQ@mail.gmail.com/"
]
},
"related_cves": [
{
"value": "CVE-2026-90781",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 361482,
"published_at": "2026-09-13T13:16:00+00:00"
}