ubuntu-cve-2026-32877
Vulnerability from osv_ubuntu
Published
2026-03-30 21:17
Modified
2026-05-20 15:27
Summary
Details
Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value (C3) failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read of up to 31 bytes, resulting in a crash or potentially other undefined behavior. This issue has been patched in version 3.11.0.
Severity
8.2 (High)
8.2 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libbotan-1.10-0",
"binary_version": "1.10.5-1+deb7u1ubuntu0.14.04.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "botan1.10",
"purl": "pkg:deb/ubuntu/botan1.10@1.10.5-1+deb7u1ubuntu0.14.04.1+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.10.5-1",
"1.10.5-1ubuntu1",
"1.10.5-1+deb7u1ubuntu0.14.04.1",
"1.10.5-1+deb7u1ubuntu0.14.04.1+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libbotan-1.10-1",
"binary_version": "1.10.12-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "botan1.10",
"purl": "pkg:deb/ubuntu/botan1.10@1.10.12-1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.10.10-6",
"1.10.12-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "botan",
"binary_version": "2.4.0-5ubuntu1"
},
{
"binary_name": "libbotan-2-4",
"binary_version": "2.4.0-5ubuntu1"
},
{
"binary_name": "python3-botan",
"binary_version": "2.4.0-5ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "botan",
"purl": "pkg:deb/ubuntu/botan@2.4.0-5ubuntu1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.0-3",
"2.4.0-4",
"2.4.0-5ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libbotan-1.10-1",
"binary_version": "1.10.17-0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "botan1.10",
"purl": "pkg:deb/ubuntu/botan1.10@1.10.17-0.1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.10.16-1",
"1.10.17-0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "botan",
"binary_version": "2.12.1-2build1"
},
{
"binary_name": "libbotan-2-12",
"binary_version": "2.12.1-2build1"
},
{
"binary_name": "python3-botan",
"binary_version": "2.12.1-2build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "botan",
"purl": "pkg:deb/ubuntu/botan@2.12.1-2build1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.0-2",
"2.9.0-2build1",
"2.12.1-2",
"2.12.1-2build1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "botan",
"binary_version": "2.19.1+dfsg-2ubuntu1+esm1"
},
{
"binary_name": "libbotan-2-19",
"binary_version": "2.19.1+dfsg-2ubuntu1+esm1"
},
{
"binary_name": "python3-botan",
"binary_version": "2.19.1+dfsg-2ubuntu1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "botan",
"purl": "pkg:deb/ubuntu/botan@2.19.1+dfsg-2ubuntu1+esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.17.3+dfsg-3",
"2.19.1+dfsg-2ubuntu1",
"2.19.1+dfsg-2ubuntu1+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "botan",
"binary_version": "2.19.3+dfsg-1ubuntu2+esm1"
},
{
"binary_name": "libbotan-2-19",
"binary_version": "2.19.3+dfsg-1ubuntu2+esm1"
},
{
"binary_name": "python3-botan",
"binary_version": "2.19.3+dfsg-1ubuntu2+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "botan",
"purl": "pkg:deb/ubuntu/botan@2.19.3+dfsg-1ubuntu2+esm1?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.19.3+dfsg-1ubuntu1",
"2.19.3+dfsg-1ubuntu2",
"2.19.3+dfsg-1ubuntu2+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libbotan-2-19",
"binary_version": "2.19.5+dfsg-4"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "botan",
"purl": "pkg:deb/ubuntu/botan@2.19.5+dfsg-4?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.19.5+dfsg-4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "botan",
"binary_version": "3.7.1+dfsg-2"
},
{
"binary_name": "libbotan-3-7",
"binary_version": "3.7.1+dfsg-2"
},
{
"binary_name": "python3-botan",
"binary_version": "3.7.1+dfsg-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "botan3",
"purl": "pkg:deb/ubuntu/botan3@3.7.1+dfsg-2?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.7.1+dfsg-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "botan",
"binary_version": "3.10.0+dfsg-2"
},
{
"binary_name": "libbotan-3-10",
"binary_version": "3.10.0+dfsg-2"
},
{
"binary_name": "python3-botan",
"binary_version": "3.10.0+dfsg-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "botan3",
"purl": "pkg:deb/ubuntu/botan3@3.10.0+dfsg-2?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.7.1+dfsg-2",
"3.10.0+dfsg-2"
]
}
],
"aliases": [],
"details": "Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value (C3) failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read of up to 31 bytes, resulting in a crash or potentially other undefined behavior. This issue has been patched in version 3.11.0.",
"id": "UBUNTU-CVE-2026-32877",
"modified": "2026-05-20T15:27:21Z",
"published": "2026-03-30T21:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-32877"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-32877"
},
{
"type": "REPORT",
"url": "https://github.com/randombit/botan/security/advisories/GHSA-7jj6-4r42-w9h6"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-32877"
]
}
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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.
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