usn-4957-2
Vulnerability from osv_ubuntu
Published
2021-05-18 14:39
Modified
2026-06-25 10:46
Summary
djvulibre vulnerabilities
Details
USN-4957-1 fixed several vulnerabilities in DjVuLibre. This update provides the corresponding update for Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that DjVuLibre incorrectly handled certain memory operations. If a user or automated system were tricked into processing a specially crafted DjVu file, a remote attacker could cause applications to hang or crash, resulting in a denial of service, or possibly execute arbitrary code.
References
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-3500",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-32490",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-32491",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-32492",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-32493",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "djview",
"binary_version": "3.5.27.1-5ubuntu0.1+esm1"
},
{
"binary_name": "djview3",
"binary_version": "3.5.27.1-5ubuntu0.1+esm1"
},
{
"binary_name": "djvulibre-bin",
"binary_version": "3.5.27.1-5ubuntu0.1+esm1"
},
{
"binary_name": "djvulibre-desktop",
"binary_version": "3.5.27.1-5ubuntu0.1+esm1"
},
{
"binary_name": "djvuserve",
"binary_version": "3.5.27.1-5ubuntu0.1+esm1"
},
{
"binary_name": "libdjvulibre-text",
"binary_version": "3.5.27.1-5ubuntu0.1+esm1"
},
{
"binary_name": "libdjvulibre21",
"binary_version": "3.5.27.1-5ubuntu0.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "djvulibre",
"purl": "pkg:deb/ubuntu/djvulibre@3.5.27.1-5ubuntu0.1+esm1?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.27.1-5ubuntu0.1+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.5.27.1-3",
"3.5.27.1-4",
"3.5.27.1-5",
"3.5.27.1-5ubuntu0.1"
]
}
],
"aliases": [],
"details": "USN-4957-1 fixed several vulnerabilities in DjVuLibre. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that DjVuLibre incorrectly handled certain memory\n operations. If a user or automated system were tricked into processing a\n specially crafted DjVu file, a remote attacker could cause applications\n to hang or crash, resulting in a denial of service, or possibly execute\n arbitrary code.\n",
"id": "USN-4957-2",
"modified": "2026-06-25T10:46:00Z",
"published": "2021-05-18T14:39:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4957-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-3500"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-32490"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-32491"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-32492"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-32493"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "djvulibre vulnerabilities",
"upstream": [
"UBUNTU-CVE-2021-3500",
"UBUNTU-CVE-2021-32490",
"UBUNTU-CVE-2021-32491",
"UBUNTU-CVE-2021-32492",
"UBUNTU-CVE-2021-32493"
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…