ubuntu-cve-2026-57062
Vulnerability from osv_ubuntu
Published
2026-06-23 18:18
Modified
2026-09-03 19:34
Summary
Details
CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.
Severity
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "dirmngr",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gnupg",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gnupg-agent",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gnupg-l10n",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gnupg-utils",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gnupg2",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpg",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpg-agent",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpg-wks-client",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpg-wks-server",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpgconf",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpgsm",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpgv",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpgv-static",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "gpgv-win32",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "keyboxd",
"binary_version": "2.4.4-2ubuntu17.6"
},
{
"binary_name": "scdaemon",
"binary_version": "2.4.4-2ubuntu17.6"
}
],
"priority_reason": "This is a low severity issue"
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.4.4-2ubuntu17.6?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.4-2ubuntu17.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.40-1.1ubuntu1",
"2.4.4-2ubuntu7",
"2.4.4-2ubuntu15",
"2.4.4-2ubuntu16",
"2.4.4-2ubuntu17",
"2.4.4-2ubuntu17.2",
"2.4.4-2ubuntu17.3",
"2.4.4-2ubuntu17.4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dirmngr",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gnupg",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gnupg-agent",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gnupg-l10n",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gnupg-utils",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gnupg2",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gpg",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gpg-agent",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gpg-wks-client",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gpg-wks-server",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gpgconf",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gpgsm",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gpgv",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "gpgv-static",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "scdaemon",
"binary_version": "2.4.8-2ubuntu2.1"
},
{
"binary_name": "tpm2daemon",
"binary_version": "2.4.8-2ubuntu2.1"
}
],
"priority_reason": "This is a low severity issue"
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.4.8-2ubuntu2.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.4-2ubuntu23",
"2.4.4-2ubuntu24",
"2.4.7-17ubuntu3",
"2.4.8-2ubuntu1",
"2.4.8-2ubuntu2",
"2.4.8-2ubuntu2.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "dirmngr",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gnupg",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gnupg-agent",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gnupg-l10n",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gnupg-utils",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gnupg2",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gpg",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gpg-agent",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gpg-wks-client",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gpg-wks-server",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gpgconf",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gpgsm",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gpgv",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "gpgv-static",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "scdaemon",
"binary_version": "2.4.8-4ubuntu3.1"
},
{
"binary_name": "tpm2daemon",
"binary_version": "2.4.8-4ubuntu3.1"
}
],
"priority_reason": "This is a low severity issue"
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.4.8-4ubuntu3.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.8-4ubuntu3.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.8-2ubuntu2",
"2.4.8-4ubuntu1",
"2.4.8-4ubuntu2",
"2.4.8-4ubuntu3"
]
}
],
"aliases": [],
"details": "CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.",
"id": "UBUNTU-CVE-2026-57062",
"modified": "2026-09-03T19:34:55Z",
"published": "2026-06-23T18:18:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-57062"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-57062"
},
{
"type": "REPORT",
"url": "https://blog.calif.io/p/how-to-format-a-ciphertext"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8720-1"
}
],
"related": [
"USN-8720-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-57062"
]
}
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.
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.
Loading…
Loading…