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OESA-2023-1670 (CVE-2022-45887)
Vulnerability from osv_openeuler – Published: 2023-09-22 11:06 – Updated: 2026-08-06 11:06 – Source website
VLAI
Summary
kernel security update
Details
The Linux Kernel, the operating system core itself.
Security Fix(es):
An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak because of the lack of a dvb_frontend_detach call.(CVE-2022-45887)
A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality.
(CVE-2023-20588)
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
(CVE-2023-21400)
VUL-0: CVE-2023-32249: kernel: Linux Kernel ksmbd Multichannel Improper Authentication Session Hijack Vulnerability(CVE-2023-32249)
VUL-0: CVE-2023-32251: kernel: Linux Kernel ksmbd Improper Restriction of Excessive Authentication Attempts Protection Bypass Vulnerability(CVE-2023-32251)
VUL-0: CVE-2023-32253: kernel: Linux Kernel ksmbd Session Deadlock Denial-of-Service Vulnerability(CVE-2023-32253)
** REJECT ** CVE-2023-4881 was wrongly assigned to a bug that was deemed to be a non-security issue by the Linux kernel security team.(CVE-2023-4881)
A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.
When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().
We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.
(CVE-2023-4921)
Severity
8.1 (High)
References
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CVE-2022-45887 (GCVE-0-2022-45887)
Vulnerability from cvelistv5 – Published: 2022-11-25 00:00 – Updated: 2025-04-25 19:14
VLAI
EPSS
VEX
Summary
An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak because of the lack of a dvb_frontend_detach call.
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-25 19:13 UTC
CWE
Assigner
References
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CVE-2023-20588 (GCVE-0-2023-20588)
Vulnerability from cvelistv5 – Published: 2023-08-08 17:06 – Updated: 2024-10-17 14:23
VLAI
EPSS
VEX
Title
Speculative Leaks
Summary
A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-17 14:23 UTC
Assigner
References
28 references
| URL | Tags |
|---|---|
| https://www.amd.com/en/corporate/product-security… | vendor-advisory |
| https://www.debian.org/security/2023/dsa-5480 | |
| https://www.debian.org/security/2023/dsa-5492 | |
| http://www.openwall.com/lists/oss-security/2023/09/25/3 | |
| http://www.openwall.com/lists/oss-security/2023/09/25/4 | |
| http://xenbits.xen.org/xsa/advisory-439.html | |
| http://www.openwall.com/lists/oss-security/2023/09/25/5 | |
| http://www.openwall.com/lists/oss-security/2023/09/25/8 | |
| http://www.openwall.com/lists/oss-security/2023/09/25/7 | |
| http://www.openwall.com/lists/oss-security/2023/09/26/5 | |
| http://www.openwall.com/lists/oss-security/2023/09/26/8 | |
| http://www.openwall.com/lists/oss-security/2023/09/26/9 | |
| http://www.openwall.com/lists/oss-security/2023/09/27/1 | |
| https://lists.fedoraproject.org/archives/list/pac… | |
| https://lists.fedoraproject.org/archives/list/pac… | |
| http://www.openwall.com/lists/oss-security/2023/1… | |
| http://www.openwall.com/lists/oss-security/2023/10/03/9 | |
| http://www.openwall.com/lists/oss-security/2023/1… | |
| http://www.openwall.com/lists/oss-security/2023/1… | |
| http://www.openwall.com/lists/oss-security/2023/1… | |
| http://www.openwall.com/lists/oss-security/2023/1… | |
| http://www.openwall.com/lists/oss-security/2023/10/04/1 | |
| http://www.openwall.com/lists/oss-security/2023/10/04/2 | |
| http://www.openwall.com/lists/oss-security/2023/10/04/4 | |
| http://www.openwall.com/lists/oss-security/2023/10/04/3 | |
| https://lists.fedoraproject.org/archives/list/pac… | |
| https://lists.debian.org/debian-lts-announce/2023… | |
| https://security.netapp.com/advisory/ntap-2024053… |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| AMD | EPYC™ 7001 Processors |
Affected:
various
|
|
| AMD | Athlon™ 3000 Series Processors with Radeon™ Graphics |
Affected:
various
|
|
| AMD | Ryzen™ 3000 Series Processors with Radeon™ Graphics |
Affected:
various
|
|
| AMD | Athlon™ PRO 3000 Series Processors with Radeon™ Vega Graphics |
Affected:
Various
|
|
| AMD | Ryzen™ PRO 3000 Series Processors with Radeon™ Vega Graphics |
Affected:
various
|
Date Public
2023-08-08 16:30
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CVE-2023-21400 (GCVE-0-2023-21400)
Vulnerability from cvelistv5 – Published: 2023-07-12 23:53 – Updated: 2025-02-13 16:40
VLAI
EPSS
VEX
Summary
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
Severity
No CVSS data available.
CWE
- Elevation of privilege
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://source.android.com/security/bulletin/pixe… | |
| http://www.openwall.com/lists/oss-security/2023/07/14/2 | |
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| http://www.openwall.com/lists/oss-security/2023/07/19/7 | |
| http://www.openwall.com/lists/oss-security/2023/07/25/7 | |
| https://www.debian.org/security/2023/dsa-5480 | |
| http://packetstormsecurity.com/files/175072/Kerne… | |
| https://lists.debian.org/debian-lts-announce/2023… | |
| https://security.netapp.com/advisory/ntap-2024011… |
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CVE-2023-32249 (GCVE-0-2023-32249)
Vulnerability from cvelistv5 – Published: 2025-08-16 13:25 – Updated: 2026-08-15 12:23
VLAI
EPSS
VEX
Title
ksmbd: not allow guest user on multichannel
Summary
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: not allow guest user on multichannel
This patch return STATUS_NOT_SUPPORTED if binding session is guest.
Severity
9.1 (Critical)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
f5a544e3bab78142207e0242d22442db85ba1eff , < ed76d3a8910be06cd4e4ba63bf6075bf903945a1
(git)
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|
| Linux | Linux |
Affected:
5.15
Unaffected: 0 , < 5.15 (semver) Unaffected: 5.15.112 , ≤ 5.15.* (semver) Unaffected: 6.1.28 , ≤ 6.1.* (semver) Unaffected: 6.2.15 , ≤ 6.2.* (semver) Unaffected: 6.3.2 , ≤ 6.3.* (semver) Unaffected: 6.4 , ≤ * (original_commit_for_fix) |
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CVE-2023-32251 (GCVE-0-2023-32251)
Vulnerability from cvelistv5 – Published: 2025-07-31 20:44 – Updated: 2026-06-30 06:36
VLAI
EPSS
VEX
Title
Kernel: ksmbd brute force delay bypass via asynchronous requests
Summary
A vulnerability has been identified in the Linux kernel's ksmbd component (kernel SMB/CIFS server). A security control designed to prevent dictionary attacks, which introduces a 5-second delay during session setup, can be bypassed through the use of asynchronous requests. This bypass negates the intended anti-brute-force protection, potentially allowing attackers to conduct dictionary attacks more efficiently against user credentials or other authentication mechanisms.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-01 13:29 UTC
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-32251 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2385852 | issue-trackingx_refsource_REDHAT |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | |
| https://www.zerodayinitiative.com/advisories/ZDI-… |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
0 , < 5.15.145
(semvar)
Affected: 6.0.0 , < 6.0.* (semvar) Affected: 6.1.0 , < 6.1.29 (semvar) Affected: 6.2.0 , < 6.2.16 (semvar) Affected: 6.3.0 , < 6.3.2 (semvar) |
|||
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2023-05-17 00:00
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CVE-2023-32253 (GCVE-0-2023-32253)
Vulnerability from cvelistv5 – Published: 2025-08-02 22:26 – Updated: 2026-06-29 23:10
VLAI
EPSS
VEX
Title
Kernel: deadlock in ksmbd_find_crypto_ctx()
Summary
A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a denial of service.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-04 13:20 UTC
CWE
- CWE-413 - Improper Resource Locking
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-32253 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2385886 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
0 , < 5.15.112
(semvar)
Affected: 6.0.0 , < 6.0.* (semvar) Affected: 6.1.0 , < 6.1.28 (semvar) Affected: 6.2.0 , < 6.2.15 (semvar) Affected: 6.3.0 , < 6.3.2 (semvar) |
|||
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2023-05-17 00:00
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CVE-2023-4881 (GCVE-0-2023-4881)
Vulnerability from cvelistv5 – Published: 2023-09-11 16:35 – Updated: 2023-09-20 17:36
VLAI
EPSS
VEX
CVE-2023-4881 was wrongly assigned to a bug that was deemed to be a non-security issue by the Linux kernel security team.
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CVE-2023-4921 (GCVE-0-2023-4921)
Vulnerability from cvelistv5 – Published: 2023-09-12 19:45 – Updated: 2026-02-25 17:20
VLAI
EPSS
VEX
Title
Use-after-free in Linux kernel's net/sched: sch_qfq component
Summary
A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.
When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().
We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-10 04:00 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Date Public
2023-09-05 06:54
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"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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