OESA-2021-1398 (CVE-2021-36976)
Vulnerability from osv_openeuler – Published: 2021-10-19 11:04 – Updated: 2026-08-06 11:04 – Source website
VLAI
Summary
libarchive security update
Details
libarchive is an open-source BSD-licensed C programming library that provides streaming access to a variety of different archive formats, including tar, cpio, pax, zip, and ISO9660 images. The distribution also includes bsdtar and bsdcpio, full-featured implementations of tar and cpio that use libarchive.
Security Fix(es):
libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).(CVE-2021-36976)
Severity
6.5 (Medium)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"libarchive-3.4.3-3.oe1.aarch64.rpm",
"libarchive-debuginfo-3.4.3-3.oe1.aarch64.rpm",
"libarchive-devel-3.4.3-3.oe1.aarch64.rpm",
"libarchive-debugsource-3.4.3-3.oe1.aarch64.rpm"
],
"noarch": [
"libarchive-help-3.4.3-3.oe1.noarch.rpm"
],
"src": [
"libarchive-3.4.3-3.oe1.src.rpm"
],
"x86_64": [
"libarchive-3.4.3-3.oe1.x86_64.rpm",
"libarchive-debugsource-3.4.3-3.oe1.x86_64.rpm",
"libarchive-devel-3.4.3-3.oe1.x86_64.rpm",
"libarchive-debuginfo-3.4.3-3.oe1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP1",
"name": "libarchive",
"purl": "pkg:rpm/openEuler/libarchive\u0026distro=openEuler-20.03-LTS-SP1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.3-3.oe1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"libarchive-debugsource-3.4.3-3.oe1.aarch64.rpm",
"libarchive-devel-3.4.3-3.oe1.aarch64.rpm",
"libarchive-3.4.3-3.oe1.aarch64.rpm",
"libarchive-debuginfo-3.4.3-3.oe1.aarch64.rpm"
],
"noarch": [
"libarchive-help-3.4.3-3.oe1.noarch.rpm"
],
"src": [
"libarchive-3.4.3-3.oe1.src.rpm"
],
"x86_64": [
"libarchive-debuginfo-3.4.3-3.oe1.x86_64.rpm",
"libarchive-devel-3.4.3-3.oe1.x86_64.rpm",
"libarchive-3.4.3-3.oe1.x86_64.rpm",
"libarchive-debugsource-3.4.3-3.oe1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP2",
"name": "libarchive",
"purl": "pkg:rpm/openEuler/libarchive\u0026distro=openEuler-20.03-LTS-SP2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.3-3.oe1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"details": "libarchive is an open-source BSD-licensed C programming library that provides streaming access to a variety of different archive formats, including tar, cpio, pax, zip, and ISO9660 images. The distribution also includes bsdtar and bsdcpio, full-featured implementations of tar and cpio that use libarchive.\r\n\r\nSecurity Fix(es):\r\n\r\nlibarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).(CVE-2021-36976)",
"id": "OESA-2021-1398",
"modified": "2026-08-06T11:04:40Z",
"published": "2021-10-19T11:04:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1398"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36976"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "libarchive security update",
"upstream": [
"CVE-2021-36976"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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