Common Weakness Enumeration
CWE-681
AllowedIncorrect Conversion between Numeric Types
Abstraction: Base · Status: Draft
When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.
146 vulnerabilities reference this CWE, most recent first.
GHSA-8785-3W2W-JPFR
Vulnerability from github – Published: 2023-04-01 06:31 – Updated: 2023-04-10 18:30
VLAI
Details
NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer, where sign conversion issuescasting an unsigned primitive to signed may lead to denial of service or information disclosure.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2023-0185"
],
"database_specific": {
"cwe_ids": [
"CWE-196",
"CWE-681"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-01T05:15:00Z",
"severity": "HIGH"
},
"details": "NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer, where sign conversion issuescasting an unsigned primitive to signed may lead to denial of service or information disclosure.",
"id": "GHSA-8785-3w2w-jpfr",
"modified": "2023-04-10T18:30:22Z",
"published": "2023-04-01T06:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0185"
},
{
"type": "WEB",
"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5452"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202310-02"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8C6J-33P3-5MCX
Vulnerability from github – Published: 2022-06-19 00:00 – Updated: 2022-06-28 00:00
VLAI
Details
A vulnerability was found in FFmpeg 2.0. It has been declared as problematic. Affected by this vulnerability is the function decode_frame of the file libavcodec/ansi.c. The manipulation leads to integer coercion error. The attack can be launched remotely. It is recommended to apply a patch to fix this issue.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2014-125011"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-18T07:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in FFmpeg 2.0. It has been declared as problematic. Affected by this vulnerability is the function decode_frame of the file libavcodec/ansi.c. The manipulation leads to integer coercion error. The attack can be launched remotely. It is recommended to apply a patch to fix this issue.",
"id": "GHSA-8c6j-33p3-5mcx",
"modified": "2022-06-28T00:00:45Z",
"published": "2022-06-19T00:00:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-125011"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.12391"
},
{
"type": "WEB",
"url": "http://git.videolan.org/?p=ffmpeg.git;a=commit;h=d42ec8433c687fcbccefa51a7716d81920218e4f"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8MPQ-MW74-R6Q5
Vulnerability from github – Published: 2022-05-13 01:08 – Updated: 2022-05-13 01:08
VLAI
Details
An issue was discovered in the MQTT input plugin in Fluent Bit through 1.0.4. When this plugin acts as an MQTT broker (server), it mishandles incoming network messages. After processing a crafted packet, the plugin's mqtt_packet_drop function (in /plugins/in_mqtt/mqtt_prot.c) executes the memmove() function with a negative size parameter. That leads to a crash of the whole Fluent Bit server via a SIGSEGV signal.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2019-9749"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-13T19:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the MQTT input plugin in Fluent Bit through 1.0.4. When this plugin acts as an MQTT broker (server), it mishandles incoming network messages. After processing a crafted packet, the plugin\u0027s mqtt_packet_drop function (in /plugins/in_mqtt/mqtt_prot.c) executes the memmove() function with a negative size parameter. That leads to a crash of the whole Fluent Bit server via a SIGSEGV signal.",
"id": "GHSA-8mpq-mw74-r6q5",
"modified": "2022-05-13T01:08:20Z",
"published": "2022-05-13T01:08:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9749"
},
{
"type": "WEB",
"url": "https://github.com/fluent/fluent-bit/issues/1135"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8Q4M-QC33-25Q8
Vulnerability from github – Published: 2026-09-02 18:32 – Updated: 2026-09-02 18:32
VLAI
Details
libjxl before 0.12 contains an integer underflow vulnerability in the container box parser that allows remote attackers to inject arbitrary metadata by exploiting 64-bit box size truncation to size_t on 32-bit platforms. Attackers can supply a crafted JPEG XL file causing the decoder to parse attacker-controlled codestream bytes as phantom box headers, enabling injection of arbitrary metadata (Exif, XMP, IPTC, JUMBF) and potential out-of-bounds reads.
Severity
5.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-82522"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-02T18:21:27Z",
"severity": "MODERATE"
},
"details": "libjxl before 0.12 contains an integer underflow vulnerability in the container box parser that allows remote attackers to inject arbitrary metadata by exploiting 64-bit box size truncation to size_t on 32-bit platforms. Attackers can supply a crafted JPEG XL file causing the decoder to parse attacker-controlled codestream bytes as phantom box headers, enabling injection of arbitrary metadata (Exif, XMP, IPTC, JUMBF) and potential out-of-bounds reads.",
"id": "GHSA-8q4m-qc33-25q8",
"modified": "2026-09-02T18:32:30Z",
"published": "2026-09-02T18:32:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82522"
},
{
"type": "WEB",
"url": "https://github.com/libjxl/libjxl/pull/4885"
},
{
"type": "WEB",
"url": "https://github.com/libjxl/libjxl/commit/22ad80af1454f0444ea34115e49ed40517147d68"
},
{
"type": "WEB",
"url": "https://github.com/libjxl/libjxl/releases/tag/v0.12.0"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/libjxl-container-box-parser-integer-underflow-via-32-bit-size-truncation"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-8QRJ-MMP7-PP63
Vulnerability from github – Published: 2022-05-24 17:01 – Updated: 2022-11-30 21:30
VLAI
Details
PowerDNS Authoritative daemon , all versions pdns 4.1.x before pdns 4.1.10, exiting when encountering a serial between 2^31 and 2^32-1 while trying to notify a slave leads to DoS.
Severity
4.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2019-10203"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-11-22T13:15:00Z",
"severity": "MODERATE"
},
"details": "PowerDNS Authoritative daemon , all versions pdns 4.1.x before pdns 4.1.10, exiting when encountering a serial between 2^31 and 2^32-1 while trying to notify a slave leads to DoS.",
"id": "GHSA-8qrj-mmp7-pp63",
"modified": "2022-11-30T21:30:22Z",
"published": "2022-05-24T17:01:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10203"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10203"
},
{
"type": "WEB",
"url": "https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-06.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-8QWJ-4JXW-M8JW
Vulnerability from github – Published: 2026-03-23 06:30 – Updated: 2026-07-21 13:42
VLAI
Summary
jsrsasign: Negative Exponent Handling Leads to Signature Verification Bypass
Details
Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative exponent.
Severity
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "jsrsasign"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "11.1.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-4602"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-30T19:30:01Z",
"nvd_published_at": "2026-03-23T06:16:22Z",
"severity": "HIGH"
},
"details": "Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative exponent.",
"id": "GHSA-8qwj-4jxw-m8jw",
"modified": "2026-07-21T13:42:24Z",
"published": "2026-03-23T06:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4602"
},
{
"type": "WEB",
"url": "https://github.com/kjur/jsrsasign/pull/650"
},
{
"type": "WEB",
"url": "https://github.com/kjur/jsrsasign/commit/5ea1c32bb2aa894b4bd29849839afe4f98728195"
},
{
"type": "WEB",
"url": "https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15371175"
},
{
"type": "WEB",
"url": "https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812274"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4602.json"
},
{
"type": "PACKAGE",
"url": "https://github.com/kjur/jsrsasign"
},
{
"type": "WEB",
"url": "https://gist.github.com/Kr0emer/7ecd2be7d17419e4677315ef3758faf5"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450206"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-4602"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6926"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6912"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6720"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6568"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:19410"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:19409"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:19375"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
}
],
"summary": "jsrsasign: Negative Exponent Handling Leads to Signature Verification Bypass"
}
GHSA-9339-86WC-4QGF
Vulnerability from github – Published: 2022-07-20 00:00 – Updated: 2024-06-24 21:23
VLAI
Summary
Apache Xalan Java XSLT library integer truncation issue when processing malicious XSLT stylesheets
Details
The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode.
A fix for this issue was published in September 2022 as part of an anticipated 2.7.3 release.
Severity
7.5 (High)
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "xalan:xalan"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-34169"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": true,
"github_reviewed_at": "2022-07-21T22:28:36Z",
"nvd_published_at": "2022-07-19T18:15:00Z",
"severity": "HIGH"
},
"details": "The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode.\n\nA fix for this issue was published in September 2022 as part of an anticipated 2.7.3 release.",
"id": "GHSA-9339-86wc-4qgf",
"modified": "2024-06-24T21:23:11Z",
"published": "2022-07-20T00:00:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-34169"
},
{
"type": "WEB",
"url": "https://xalan.apache.org"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2022.html"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5256"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5192"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5188"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20240621-0006"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220729-0009"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-25"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YULPNO3PAWMEQQZV2C54I3H3ZOXFZUTB"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3XPOTPPBZIPFBZHQE5E7OW6PDACUMCJ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KO3DXNKZ4EU3UZBT6AAR4XRKCD73KLMO"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JN3EVGR7FD3ZLV5SBTJXUIDCMSK4QUE2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I5OZNAZJ4YHLOKRRRZSWRT5OJ25E4XLM"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H4YNJSJ64NPCNKFPNBYITNZU5H3L4D6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YULPNO3PAWMEQQZV2C54I3H3ZOXFZUTB"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3XPOTPPBZIPFBZHQE5E7OW6PDACUMCJ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KO3DXNKZ4EU3UZBT6AAR4XRKCD73KLMO"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3EVGR7FD3ZLV5SBTJXUIDCMSK4QUE2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I5OZNAZJ4YHLOKRRRZSWRT5OJ25E4XLM"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H4YNJSJ64NPCNKFPNBYITNZU5H3L4D6L"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/x3f7xv3p1g32qj2hlg8wd57pwcpld471"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/2qvl7r43wb4t8p9dd9om1bnkssk07sn8"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/12pxy4phsry6c34x2ol4fft6xlho4kyw"
},
{
"type": "WEB",
"url": "https://gitbox.apache.org/repos/asf?p=xalan-java.git;a=commit;h=da3e0d06b467247643ce04e88d3346739d119f21"
},
{
"type": "WEB",
"url": "https://gitbox.apache.org/repos/asf?p=xalan-java.git;a=commit;h=ab57211e5d2e97cbed06786f919fa9b749c83573"
},
{
"type": "WEB",
"url": "https://gitbox.apache.org/repos/asf?p=xalan-java.git;a=commit;h=2e60d0a9a5b822c4abf9051857973b1c6babfe81"
},
{
"type": "PACKAGE",
"url": "https://gitbox.apache.org/repos/asf?p=xalan-java.git"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/168186/Xalan-J-XSLTC-Integer-Truncation.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/07/19/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/07/19/6"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/07/20/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/07/20/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/10/18/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/11/04/8"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/11/07/2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "Apache Xalan Java XSLT library integer truncation issue when processing malicious XSLT stylesheets"
}
GHSA-93MF-426M-G6X9
Vulnerability from github – Published: 2025-09-09 19:19 – Updated: 2025-09-10 21:07
VLAI
Summary
CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion
Details
Summary
The CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling cache pinning for very long periods. This can effectively cause a denial of service for DNS updates/changes to affected services.
Details
In plugin/etcd/etcd.go, the TTL() function casts the 64-bit etcd lease ID to a uint32 and uses it as the TTL:
func (e *Etcd) TTL(kv *mvccpb.KeyValue, serv *msg.Service) uint32 {
etcdTTL := uint32(kv.Lease) // BUG: Lease ID != TTL duration
// ... rest of function uses etcdTTL as actual TTL
}
Lease IDs are identifiers, not durations. Large lease IDs can produce very large TTLs after truncation, causing downstream resolvers and clients to cache answers for years.
This enables cache pinning attacks, such as:
- Attacker has etcd write access (compromised service account, misconfigured RBAC/TLS, exposed etcd, insider).
- Attacker writes/updates a key and attaches any lease (the actual lease duration is irrelevant; the ID is misused).
- CoreDNS serves the record with an extreme TTL; downstream resolvers/clients cache it for a very long time.
- Even after fixing/deleting the key (or restarting CoreDNS), clients continue to use the cached answer until their caches expire or enforce their own TTL caps.
Some resolvers implement TTL caps, but values and defaults vary widely and are not guaranteed.
PoC
- Launch etcd:
etcd \
--data-dir ./etcd-data \
--listen-client-urls http://127.0.0.1:2379 \
--advertise-client-urls http://127.0.0.1:2379 \
--listen-peer-urls http://127.0.0.1:2380 \
--initial-advertise-peer-urls http://127.0.0.1:2380 \
--initial-cluster default=http://127.0.0.1:2380 \
--name default \
--initial-cluster-token etcd-ttl-poc \
--initial-cluster-state new &
- Prepare CoreDNS configuration:
cat > Corefile << 'EOF'
skydns.local {
etcd {
path /skydns
endpoint http://localhost:2379
debug
}
log
errors
}
EOF
- Launch CoreDNS:
coredns -conf Corefile -dns.port=1053
- Create an etcd record called
large-lease-servicewith a lease grant of 1 hour:
LEASE_ID=$(etcdctl --endpoints=http://127.0.0.1:2379 lease grant 3600 | awk '{print $2}')
etcdctl --endpoints=http://127.0.0.1:2379 put /skydns/local/skydns/large-lease-service '{
"host": "192.168.1.101",
"port": 8080
}' --lease=$LEASE_ID
- Verify the lease details:
$ etcdctl lease timetolive $LEASE_ID
lease 7c4a98dd35b75c23 granted with TTL(3600s), remaining(3252s)
- Query the DNS record and observe the record TTL at 28 years:
$ dig +noall +answer @127.0.0.1 -p 1053 large-lease-service.skydns.local A
large-lease-service.skydns.local. 901209123 IN A 192.168.1.101
Impact
Affects any CoreDNS deployment using the etcd plugin for service discovery.
- Availability: High as service changes (IP rotations, failovers, rollbacks) may be ignored for extended periods by caches.
- Integrity: Low as stale/incorrect answers persist abnormally long. (Note: attacker with etcd write could already point to malicious endpoints; the bug magnifies persistence.)
- Confidentiality: None.
The bug was introduced in #1702 as part of the CoreDNS v1.2.0 release.
Mitigation
The TTL function should utilise etcd's Lease API to determine the proper TTL for leased records. Add configurable limits for minimum and maximum TTL when passing lease records, to clamp potentially extreme TTL values set as lease grant.
Credit
Thanks to @thevilledev for disclovering this vulnerability and contributing a fix.
For more information
Please consult our security guide for more information regarding our security process.
Severity
7.1 (High)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/coredns/coredns"
},
"ranges": [
{
"events": [
{
"introduced": "1.2.0"
},
{
"fixed": "1.12.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-58063"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": true,
"github_reviewed_at": "2025-09-09T19:19:33Z",
"nvd_published_at": "2025-09-09T20:15:48Z",
"severity": "HIGH"
},
"details": "# Summary\n\nThe CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling cache pinning for very long periods. This can effectively cause a denial of service for DNS updates/changes to affected services.\n\n# Details\n\nIn `plugin/etcd/etcd.go`, the `TTL()` function casts the 64-bit etcd lease ID to a uint32 and uses it as the TTL:\n\n```go\nfunc (e *Etcd) TTL(kv *mvccpb.KeyValue, serv *msg.Service) uint32 {\n etcdTTL := uint32(kv.Lease) // BUG: Lease ID != TTL duration\n // ... rest of function uses etcdTTL as actual TTL\n}\n```\n\nLease IDs are identifiers, not durations. Large lease IDs can produce very large TTLs after truncation, causing downstream resolvers and clients to cache answers for years.\n\nThis enables cache pinning attacks, such as:\n\n1. Attacker has etcd write access (compromised service account, misconfigured RBAC/TLS, exposed etcd, insider).\n2. Attacker writes/updates a key and attaches any lease (the actual lease duration is irrelevant; the ID is misused).\n4. CoreDNS serves the record with an extreme TTL; downstream resolvers/clients cache it for a very long time.\n5. Even after fixing/deleting the key (or restarting CoreDNS), clients continue to use the cached answer until their caches expire or enforce their own TTL caps.\n\nSome resolvers implement TTL caps, but values and defaults vary widely and are not guaranteed.\n\n# PoC\n\n1. Launch etcd:\n\n```bash\netcd \\\n --data-dir ./etcd-data \\\n --listen-client-urls http://127.0.0.1:2379 \\\n --advertise-client-urls http://127.0.0.1:2379 \\\n --listen-peer-urls http://127.0.0.1:2380 \\\n --initial-advertise-peer-urls http://127.0.0.1:2380 \\\n --initial-cluster default=http://127.0.0.1:2380 \\\n --name default \\\n --initial-cluster-token etcd-ttl-poc \\\n --initial-cluster-state new \u0026\n```\n\n2. Prepare CoreDNS configuration:\n\n```bash\ncat \u003e Corefile \u003c\u003c \u0027EOF\u0027\nskydns.local {\n etcd {\n path /skydns\n endpoint http://localhost:2379\n debug\n }\n log\n errors\n}\nEOF\n```\n\n3. Launch CoreDNS:\n\n```bash\ncoredns -conf Corefile -dns.port=1053\n```\n\n4. Create an etcd record called `large-lease-service` with a lease grant of 1 hour:\n\n```bash\nLEASE_ID=$(etcdctl --endpoints=http://127.0.0.1:2379 lease grant 3600 | awk \u0027{print $2}\u0027)\n\netcdctl --endpoints=http://127.0.0.1:2379 put /skydns/local/skydns/large-lease-service \u0027{\n \"host\": \"192.168.1.101\",\n \"port\": 8080\n}\u0027 --lease=$LEASE_ID\n```\n\n7. Verify the lease details:\n\n```bash\n$ etcdctl lease timetolive $LEASE_ID\nlease 7c4a98dd35b75c23 granted with TTL(3600s), remaining(3252s)\n```\n\n8. Query the DNS record and observe the record TTL at 28 years:\n\n```bash\n$ dig +noall +answer @127.0.0.1 -p 1053 large-lease-service.skydns.local A\nlarge-lease-service.skydns.local. 901209123 IN A 192.168.1.101\n```\n\n# Impact\n\nAffects any CoreDNS deployment using the etcd plugin for service discovery.\n\n- Availability: High as service changes (IP rotations, failovers, rollbacks) may be ignored for extended periods by caches.\n- Integrity: Low as stale/incorrect answers persist abnormally long. (Note: attacker with etcd write could already point to malicious endpoints; the bug magnifies persistence.)\n- Confidentiality: None.\n\nThe bug was introduced in #1702 as part of the CoreDNS [v1.2.0 release](https://github.com/coredns/coredns/releases/tag/v1.2.0).\n\n# Mitigation\n\nThe TTL function should utilise etcd\u0027s Lease API to determine the proper TTL for leased records. Add configurable limits for minimum and maximum TTL when passing lease records, to clamp potentially extreme TTL values set as lease grant.\n\n# Credit\n\nThanks to [@thevilledev](https://github.com/thevilledev) for disclovering this vulnerability and contributing a fix.\n\n# For more information\n\nPlease consult our [security guide](https://github.com/coredns/coredns/blob/master/.github/SECURITY.md) for more information regarding our security process.",
"id": "GHSA-93mf-426m-g6x9",
"modified": "2025-09-10T21:07:40Z",
"published": "2025-09-09T19:19:33Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/coredns/coredns/security/advisories/GHSA-93mf-426m-g6x9"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58063"
},
{
"type": "WEB",
"url": "https://github.com/coredns/coredns/commit/e1768a5d272e9da649dfb8588595e5c6e4e640bf"
},
{
"type": "PACKAGE",
"url": "https://github.com/coredns/coredns"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
}
],
"summary": "CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion"
}
GHSA-9W2P-5MGW-P94C
Vulnerability from github – Published: 2021-08-25 14:43 – Updated: 2024-11-13 16:05
VLAI
Summary
Integer overflow due to conversion to unsigned
Details
Impact
The implementation of tf.raw_ops.QuantizeAndDequantizeV4Grad is vulnerable to an integer overflow issue caused by converting a signed integer value to an unsigned one and then allocating memory based on this value.
import tensorflow as tf
tf.raw_ops.QuantizeAndDequantizeV4Grad(
gradients=[1.0,2.0],
input=[1.0,1.0],
input_min=[0.0],
input_max=[10.0],
axis=-100)
The implementation uses the axis value as the size argument to absl::InlinedVector constructor. But, the constructor uses an unsigned type for the argument, so the implicit conversion transforms the negative value to a large integer.
Patches
We have patched the issue in GitHub commit 96f364a1ca3009f98980021c4b32be5fdcca33a1.
The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, and TensorFlow 2.4.3, as these are also affected and still in supported range.
For more information
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
Attribution
This vulnerability has been reported by members of the Aivul Team from Qihoo 360.
Severity
5.5 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.5.0"
},
{
"fixed": "2.5.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.5.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.5.0"
},
{
"fixed": "2.5.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.5.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.5.0"
},
{
"fixed": "2.5.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.5.0"
]
}
],
"aliases": [
"CVE-2021-37645"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": true,
"github_reviewed_at": "2021-08-23T19:20:13Z",
"nvd_published_at": "2021-08-12T21:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\nThe implementation of `tf.raw_ops.QuantizeAndDequantizeV4Grad` is vulnerable to an integer overflow issue caused by converting a signed integer value to an unsigned one and then allocating memory based on this value.\n\n```python\nimport tensorflow as tf\n\ntf.raw_ops.QuantizeAndDequantizeV4Grad(\n gradients=[1.0,2.0],\n input=[1.0,1.0],\n input_min=[0.0],\n input_max=[10.0],\n axis=-100)\n```\n\nThe [implementation](https://github.com/tensorflow/tensorflow/blob/8d72537c6abf5a44103b57b9c2e22c14f5f49698/tensorflow/core/kernels/quantize_and_dequantize_op.cc#L126) uses the `axis` value as the size argument to `absl::InlinedVector` constructor. But, the constructor uses an unsigned type for the argument, so the implicit conversion transforms the negative value to a large integer.\n\n### Patches\nWe have patched the issue in GitHub commit [96f364a1ca3009f98980021c4b32be5fdcca33a1](https://github.com/tensorflow/tensorflow/commit/96f364a1ca3009f98980021c4b32be5fdcca33a1).\n\nThe fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, and TensorFlow 2.4.3, as these are also affected and still in supported range.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.\n\n### Attribution\nThis vulnerability has been reported by members of the Aivul Team from Qihoo 360.",
"id": "GHSA-9w2p-5mgw-p94c",
"modified": "2024-11-13T16:05:10Z",
"published": "2021-08-25T14:43:37Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9w2p-5mgw-p94c"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37645"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/96f364a1ca3009f98980021c4b32be5fdcca33a1"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-558.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-756.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-267.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/tensorflow/tensorflow"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Integer overflow due to conversion to unsigned"
}
GHSA-C83M-WJ2V-88PF
Vulnerability from github – Published: 2022-03-26 00:00 – Updated: 2022-04-06 00:02
VLAI
Details
slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2022-27882"
],
"database_specific": {
"cwe_ids": [
"CWE-681"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-25T18:15:00Z",
"severity": "HIGH"
},
"details": "slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation.",
"id": "GHSA-c83m-wj2v-88pf",
"modified": "2022-04-06T00:02:13Z",
"published": "2022-03-26T00:00:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27882"
},
{
"type": "WEB",
"url": "https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html"
},
{
"type": "WEB",
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/033_slaacd.patch.sig"
},
{
"type": "WEB",
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/017_slaacd.patch.sig"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220506-0005"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Implementation
Avoid making conversion between numeric types. Always check for the allowed ranges.
No CAPEC attack patterns related to this CWE.