CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
15.7%
A flaw was found in the Linux kernel’s TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 (“tun: tun_chr_open(): correctly initialize socket uid”), - 66b2c338adce (“tap: tap_open(): correctly initialize socket uid”), pass “inode->i_uid” to sock_init_data_uid() as the last parameter and that turns out to not be accurate.
[
{
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"versions": [
{
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"lessThan": "*",
"versionType": "rpm",
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}
],
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::nfv",
"cpe:/a:redhat:enterprise_linux:9::crb",
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos",
"cpe:/a:redhat:enterprise_linux:9::realtime"
]
},
{
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}
],
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]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
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"packageName": "kernel",
"defaultStatus": "unaffected",
"cpes": [
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]
},
{
"vendor": "Red Hat",
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"packageName": "kernel",
"defaultStatus": "unaffected",
"cpes": [
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]
},
{
"vendor": "Red Hat",
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"packageName": "kernel-rt",
"defaultStatus": "unaffected",
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},
{
"vendor": "Red Hat",
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]
},
{
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]
},
{
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"packageName": "kernel-rt",
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]
},
{
"vendor": "Red Hat",
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"packageName": "redhat-virtualization-host",
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"cpes": [
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]
}
]