Medium
yasm — security advisory
An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in expand_mmac_params() in modules/preprocs/nasm/nasm-pp.c.
- Products
- yasm
- Affected versions
- 1.3.0-2, 1.3.0-2.1, 1.3.0-2build1, 1.3.0-2ubuntu1, 1.3.0-4, 1.3.0-5, 1.3.0-7, 1.3.0-8
- Fixed versions
- Not specified
- CVEs
- CVE-2021-33457
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:59 UTC · Revision 1
Source evidence
An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in expand_mmac_params() in modules/preprocs/nasm/nasm-pp.c.
osv:UBUNTU-CVE-2021-33457
yasm
Fixed versions: Not specified
yasm
Fixed versions: Not specified
yasm
Fixed versions: Not specified
yasm
Fixed versions: Not specified
yasm
Fixed versions: Not specified
yasm
Fixed versions: Not specified
yasm
Fixed versions: Not specified
yasm
Fixed versions: Not specified
Complete source record
{
"id": "751ee0c4bf546987f36650d35cd7f143d49282b964962e1c2aac0e6872045843",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-33457",
"method": "structured",
"payload": {
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"title": "UBUNTU-CVE-2021-33457",
"summary": "An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in expand_mmac_params() in modules/preprocs/nasm/nasm-pp.c.",
"evidence": "osv:UBUNTU-CVE-2021-33457",
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"modified": "2026-10-17T12:56:19.886769278Z",
"provider": "osv",
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"references": [
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"https://github.com/yasm/yasm/issues/171",
"https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d",
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"source_id": "core-osv",
"document_id": 355298,
"published_at": "2022-07-26T13:15:00+00:00"
}