Low
bouncycastle — security advisory
Out-of-bounds write vulnerability in Legion of the Bouncy Castle Inc. BC-LTS bcprov-lts8on on ARM allows Overflow Buffers. This vulnerability is associated with program files https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/shake.C, https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/sha3.C. This issue affects BC-LTS: from 2.73.0 before 2.73.12.1. Issue is only applicable if application involved is accepting memoable SHA3 / SHAKE states from potentially untrusted sources.
- Products
- bouncycastle
- Affected versions
- 1.49+dfsg-3ubuntu1, 1.51-4ubuntu1, 1.51-4ubuntu1+esm1, 1.57-1, 1.58-1, 1.59-1, 1.59-1ubuntu0.1~esm1, 1.61-1, 1.61-1ubuntu0.1~esm1, 1.68-2, 1.68-4, 1.68-5, 1.68-5ubuntu0.1~esm1, 1.72-2, 1.77-1, 1.77-1ubuntu0.1~esm1, 1.80-3
- Fixed versions
- Not specified
- CVEs
- CVE-2026-15997
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:03 UTC · Revision 1
Source evidence
Out-of-bounds write vulnerability in Legion of the Bouncy Castle Inc. BC-LTS bcprov-lts8on on ARM allows Overflow Buffers. This vulnerability is associated with program files https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/shake.C, https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/sha3.C. This issue affects BC-LTS: from 2.73.0 before 2.73.12.1. Issue is only applicable if application involved is accepting memoable SHA3 / SHAKE states from potentially untrusted sources.
osv:UBUNTU-CVE-2026-15997
bouncycastle
Fixed versions: Not specified
bouncycastle
Fixed versions: Not specified
bouncycastle
Fixed versions: Not specified
bouncycastle
Fixed versions: Not specified
bouncycastle
Fixed versions: Not specified
bouncycastle
Fixed versions: Not specified
bouncycastle
Fixed versions: Not specified
Complete source record
{
"id": "ef68228876e07f3daba052607d6b0b672bf53d00a417f8097930f6ff82eeefbd",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-15997",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-15997",
"summary": "Out-of-bounds write vulnerability in Legion of the Bouncy Castle Inc. BC-LTS bcprov-lts8on on ARM allows Overflow Buffers. This vulnerability is associated with program files https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/shake.C, https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/sha3.C. This issue affects BC-LTS: from 2.73.0 before 2.73.12.1. Issue is only applicable if application involved is accepting memoable SHA3 / SHAKE states from potentially untrusted sources.",
"evidence": "osv:UBUNTU-CVE-2026-15997",
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{
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"evidence": "/affected/0/versions"
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{
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{
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{
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{
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{
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{
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{
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{
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],
"severity": "low",
"structured": {
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"aliases": [
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],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/S:P/AU:N/R:A/V:D/RE:M/U:Amber"
},
{
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],
"affected": [
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{
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{
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{
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"package": {
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"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
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"1.58-1",
"1.59-1",
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],
"database_specific": {
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},
"ecosystem_specific": {
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},
{
"binary_name": "libbcpg-java",
"binary_version": "1.59-1ubuntu0.1~esm1"
},
{
"binary_name": "libbcpkix-java",
"binary_version": "1.59-1ubuntu0.1~esm1"
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{
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"package": {
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"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"1.61-1",
"1.61-1ubuntu0.1~esm1"
],
"database_specific": {
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"ecosystem_specific": {
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{
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},
"versions": [
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"1.68-4",
"1.68-5",
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},
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{
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},
{
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},
{
"binary_name": "libbcprov-java",
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},
{
"binary_name": "libbctls-java",
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],
"modified": "2026-10-17T12:58:06.073302224Z",
"provider": "osv",
"upstream": [
"CVE-2026-15997"
],
"references": [
"https://ubuntu.com/security/CVE-2026-15997",
"https://www.cve.org/CVERecord?id=CVE-2026-15997",
"https://github.com/bcgit/bc-lts-java/wiki/CVE-2026-15997"
]
},
"related_cves": [
{
"value": "CVE-2026-15997",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 358074,
"published_at": "2026-07-16T23:16:00+00:00"
}