mirror of
https://github.com/CVEProject/cvelist.git
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180 lines
7.4 KiB
JSON
180 lines
7.4 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2023-3603",
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"ASSIGNER": "secalert@redhat.com",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "A missing allocation check in sftp server processing read requests may cause a NULL dereference on low-memory conditions. The malicious client can request up to 4GB SFTP reads, causing allocation of up to 4GB buffers, which was not being checked for failure. This will likely crash the authenticated user's sftp server connection (if implemented as forking as recommended). For thread-based servers, this might also cause DoS for legitimate users.\r\n\r\nGiven this code is not in any released versions, no security releases have been issued."
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "NULL Pointer Dereference",
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"cweId": "CWE-476"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "n/a",
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"product": {
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"product_data": [
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{
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"product_name": "libssh",
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"version": {
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"version_data": [
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"defaultStatus": "affected"
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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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{
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"vendor_name": "Red Hat",
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"product": {
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"product_data": [
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{
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"product_name": "Red Hat Enterprise Linux 7",
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"version": {
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"version_data": [
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"defaultStatus": "unaffected"
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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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"product_name": "Red Hat Enterprise Linux 8",
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"version": {
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"version_data": [
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"defaultStatus": "unaffected"
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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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"product_name": "Red Hat Enterprise Linux 9",
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"version": {
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"version_data": [
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"defaultStatus": "unaffected"
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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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{
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"vendor_name": "Fedora",
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"product": {
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"product_data": [
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{
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"product_name": "Extra Packages for Enterprise Linux 7",
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"version": {
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"version_data": [
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"defaultStatus": "unaffected"
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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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"product_name": "Fedora",
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"version": {
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"version_data": [
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"defaultStatus": "unaffected"
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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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]
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}
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},
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"references": {
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"reference_data": [
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{
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"url": "https://access.redhat.com/security/cve/CVE-2023-3603",
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"refsource": "MISC",
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"name": "https://access.redhat.com/security/cve/CVE-2023-3603"
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},
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2221791",
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"refsource": "MISC",
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"name": "https://bugzilla.redhat.com/show_bug.cgi?id=2221791"
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}
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]
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},
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"work_around": [
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{
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"lang": "en",
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"value": "The SFTP server implementation is based on callbacks so you can rewrite the sftp_channel_default_data_callback() to provide additional checks.\n\n[1] https://gitlab.com/libssh/libssh-mirror/-/blob/master/examples/sample_sftpserver.c#L330"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Upstream acknowledges Wei Chong Tan as the original reporter."
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}
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],
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"impact": {
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"cvss": [
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{
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 3.1,
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"baseSeverity": "LOW",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
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"version": "3.1"
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}
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]
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}
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} |