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ubuntucveUbuntu.comUB:CVE-2023-3611
HistoryJul 21, 2023 - 12:00 a.m.

CVE-2023-3611

2023-07-2100:00:00
ubuntu.com
ubuntu.com
25

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.2%

JSON

An out-of-bounds write vulnerability in the Linux kernel’s net/sched:
sch_qfq component can be exploited to achieve local privilege escalation.
The qfq_change_agg() function in net/sched/sch_qfq.c allows an
out-of-bounds write because lmax is updated according to packet sizes
without bounds checks. We recommend upgrading past commit
3e337087c3b5805fe0b8a46ba622a962880b5d64.

Bugs

Notes

Author Note
Priority reason: By using unprivileged user namespaces, this can be exploited to achieve local privilege escalation.
rodrigo-zaiden similar to CVE-2023-31436.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-216.227) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu20.04noarchlinux< 5.4.0-159.176UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-82.91UNKNOWN
ubuntu23.04noarchlinux< 6.2.0-31.31UNKNOWN
ubuntu24.04noarchlinux< anyUNKNOWN
ubuntu14.04noarchlinux< 3.13.0-193.244) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux< 4.4.0-244.278) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1160.173) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1108.116UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1043.48UNKNOWN
Rows per page:
1-10 of 901

References

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RHEL 8 : kpatch-patch (RHSA-2024:1377)
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(RHSA-2024:1377) Important: kpatch-patch security update
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CVE-2023-31436 affecting package kernel for versions less than 5.15.111.1-1
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K000138726 : Linux kernel vulnerability CVE-2023-3611
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2023-05-15 00:00:00
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2023-06-07 00:00:00
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[SECURITY] [DSA 5402-1] linux security update
2023-05-13 11:20:52
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linux-5.10 - security update
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linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-snapdragon vulnerabilities
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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.2%

JSON
Related for UB:CVE-2023-3611
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