181 lines
8.9 KiB
JSON
181 lines
8.9 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-111441",
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"assignerOrgId": "a1a479f7-907b-4ae8-a999-9148cadc9224",
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"state": "PUBLISHED",
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"assignerShortName": "openGauss",
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"dateReserved": "2026-10-16T03:04:58.958Z",
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"datePublished": "2026-10-19T02:31:01.069Z",
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"dateUpdated": "2026-10-19T17:42:42.026Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "a1a479f7-907b-4ae8-a999-9148cadc9224",
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"shortName": "openGauss",
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"dateUpdated": "2026-10-19T02:31:01.069Z"
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},
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"title": "HLL 反序列化 lenTotal/lenUsed 校验缺失导致堆越界写",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-122",
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"description": "CWE-122 Heap-based buffer overflow",
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"type": "CWE"
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}
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]
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-100",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-100 Overflow Buffers"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "openGauss-server",
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"product": "openGauss-server",
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"platforms": [
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"openEuler Centos"
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],
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"collectionURL": "https://opengauss.org/zh/download/archive/?version=7.0.0%20(LTS)",
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"versions": [
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{
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"status": "unaffected",
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"version": "7.0.0-LTS"
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}
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],
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"defaultStatus": "unaffected"
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},
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{
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"vendor": "openGauss-server",
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"product": "openGauss-server",
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"platforms": [
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"openEuler Centos"
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],
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"collectionURL": "https://opengauss.org/zh/download/archive/?version=7.0.0-RC3",
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"versions": [
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{
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"status": "affected",
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"version": "7.0.0-RC1, 7.0.0-RC2 7.0.0-RC3"
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},
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{
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"status": "affected",
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"version": "2.1.0"
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},
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{
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"status": "affected",
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"version": "3.0.0-3.0.6"
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},
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{
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"status": "affected",
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"version": "3.1.0"
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},
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{
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"status": "affected",
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"version": "5.0.0-5.0.5"
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},
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{
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"status": "affected",
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"version": "6.0.0-6.0.6"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "在 openGauss-server 的 src/gausskernel/cbb/utils/hll/hll.cpp 中，内置函数 HllObjectUnpack() 存在长度校验缺陷。该函数从用户提供的 packed HLL 解析 lenUsed 与 lenTotal 后，仅检查输入长度足以覆盖 HLL_HEAD_SIZE + lenUsed，随后按 lenTotal 分配缓冲区、按 lenUsed 调用 memcpy_s() 拷贝输入，既未校验 lenTotal >= lenUsed，也将 memcpy_s() 目标大小写成 lenUsed 而非实际分配的 lenTotal，导致安全拷贝无法拦截越界写。hll_in()、hll_print()、hll_cardinality() 等 SQL 入口会走同一解包路径。因此，普通数据库连接用户只需构造 lenTotal 小于 lenUsed 的畸形 packed HLL（例如经 ::hll 进入 hll_in()），即可触发服务端堆越界写，存在内存破坏风险。此问题随 packed HLL 解包函数 HllObjectUnpack() 进入代码，v2.1.0 起即存在。受影响版本包括 2.1.0、3.0.x、3.1.x、5.0.x、5.1.0、6.0.x，以及 7.0.0-RC1、7.0.0-RC2、7.0.0-RC3。该问题已在 7.0.0-LTS 版本修复，通过在 HllObjectUnpack() 中补齐 lenUsed <= lenTotal 校验，并将 memcpy_s() 的目标大小改为实际分配的 lenTotal。修复 PR 见 https://gitcode.com/opengauss/openGauss-server/pull/9380 。",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<div><table><tbody><tr><td>在 openGauss-server 的 src/gausskernel/cbb/utils/hll/hll.cpp 中，内置函数 HllObjectUnpack() 存在长度校验缺陷。该函数从用户提供的 packed HLL 解析 lenUsed 与 lenTotal 后，仅检查输入长度足以覆盖 HLL_HEAD_SIZE + lenUsed，随后按 lenTotal 分配缓冲区、按 lenUsed 调用 memcpy_s() 拷贝输入，既未校验 lenTotal >= lenUsed，也将 memcpy_s() 目标大小写成 lenUsed 而非实际分配的 lenTotal，导致安全拷贝无法拦截越界写。hll_in()、hll_print()、hll_cardinality() 等 SQL 入口会走同一解包路径。因此，普通数据库连接用户只需构造 lenTotal 小于 lenUsed 的畸形 packed HLL（例如经 ::hll 进入 hll_in()），即可触发服务端堆越界写，存在内存破坏风险。此问题随 packed HLL 解包函数 HllObjectUnpack() 进入代码，v2.1.0 起即存在。受影响版本包括 2.1.0、3.0.x、3.1.x、5.0.x、5.1.0、6.0.x，以及 7.0.0-RC1、7.0.0-RC2、7.0.0-RC3。该问题已在 7.0.0-LTS 版本修复，通过在 HllObjectUnpack() 中补齐 lenUsed <= lenTotal 校验，并将 memcpy_s() 的目标大小改为实际分配的 lenTotal。修复 PR 见 https://gitcode.com/opengauss/openGauss-server/pull/9380 。</td></tr></tbody></table></div>"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://gitcode.com/opengauss/openGauss-server/pull/9380"
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseSeverity": "HIGH",
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"baseScore": 8.1,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
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}
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.5"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-10-19T17:42:18.566832Z",
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"id": "CVE-2026-111441",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T17:42:42.026Z"
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}
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}
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]
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}
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} |