143 lines
6.3 KiB
JSON
143 lines
6.3 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-2026-23953",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-01-19T14:49:06.312Z",
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"datePublished": "2026-01-22T21:39:41.015Z",
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"dateUpdated": "2026-01-26T21:00:46.311Z"
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},
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"containers": {
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"cna": {
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"title": "Incus container environment configuration newline injection",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-93",
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"lang": "en",
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"description": "CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')",
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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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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "ADJACENT_NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 8.7,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
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"version": "3.1"
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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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"name": "https://github.com/lxc/incus/security/advisories/GHSA-x6jc-phwx-hp32",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/lxc/incus/security/advisories/GHSA-x6jc-phwx-hp32"
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},
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{
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"name": "https://github.com/lxc/incus/blob/HEAD/internal/server/instance/drivers/driver_lxc.go#L1081",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/lxc/incus/blob/HEAD/internal/server/instance/drivers/driver_lxc.go#L1081"
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},
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{
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"name": "https://github.com/user-attachments/files/24473682/environment_newline_injection.sh",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/user-attachments/files/24473682/environment_newline_injection.sh"
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},
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{
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"name": "https://github.com/user-attachments/files/24473685/environment_newline_injection.patch",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/user-attachments/files/24473685/environment_newline_injection.patch"
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}
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],
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"affected": [
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{
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"vendor": "lxc",
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"product": "incus",
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"versions": [
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{
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"version": ">= 6.1.0, <= 6.20.0",
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"status": "affected"
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},
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{
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"version": "<= 6.0.5",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-01-22T21:39:41.015Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Incus is a system container and virtual machine manager. In versions 6.20.0 and below, a user with the ability to launch a container with a custom YAML configuration (e.g a member of the ‘incus’ group) can create an environment variable containing newlines, which can be used to add additional configuration items in the container’s lxc.conf due to newline injection. This can allow adding arbitrary lifecycle hooks, ultimately resulting in arbitrary command execution on the host. Exploiting this issue on IncusOS requires a slight modification of the payload to change to a different writable directory for the validation step (e.g /tmp). This can be confirmed with a second container with /tmp mounted from the host (A privileged action for validation only). A fix is planned for versions 6.0.6\nand 6.21.0, but they have not been released at the time of publication."
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}
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],
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"source": {
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"advisory": "GHSA-x6jc-phwx-hp32",
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"discovery": "UNKNOWN"
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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": "2026-01-26T21:00:32.625486Z",
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"id": "CVE-2026-23953",
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"options": [
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{
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"Exploitation": "poc"
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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": "total"
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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": "2026-01-26T21:00:46.311Z"
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}
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}
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]
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}
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} |