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cvrf2cusa/cvrf/2021/cvrf-openEuler-SA-2021-1379.xml
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<?xml version="1.0" encoding="UTF-8"?>
<cvrfdoc xmlns="http://www.icasi.org/CVRF/schema/cvrf/1.1" xmlns:cvrf="http://www.icasi.org/CVRF/schema/cvrf/1.1">
<DocumentTitle xml:lang="en">An update for kernel is now available for openEuler-20.03-LTS-SP1 and openEuler-20.03-LTS-SP2</DocumentTitle>
<DocumentType>Security Advisory</DocumentType>
<DocumentPublisher Type="Vendor">
<ContactDetails>openeuler-security@openeuler.org</ContactDetails>
<IssuingAuthority>openEuler security committee</IssuingAuthority>
</DocumentPublisher>
<DocumentTracking>
<Identification>
<ID>openEuler-SA-2021-1379</ID>
</Identification>
<Status>Final</Status>
<Version>1.0</Version>
<RevisionHistory>
<Revision>
<Number>1.0</Number>
<Date>2021-10-15</Date>
<Description>Initial</Description>
</Revision>
</RevisionHistory>
<InitialReleaseDate>2021-10-15</InitialReleaseDate>
<CurrentReleaseDate>2021-10-15</CurrentReleaseDate>
<Generator>
<Engine>openEuler SA Tool V1.0</Engine>
<Date>2021-10-15</Date>
</Generator>
</DocumentTracking>
<DocumentNotes>
<Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">kernel security update</Note>
<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for kernel is now available for openEuler-20.03-LTS-SP1 and openEuler-20.03-LTS-SP2.</Note>
<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">The Linux Kernel, the operating system core itself.
Security Fix(es):
A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.(CVE-2021-3669)
(CVE-2021-3764)
(CVE-2021-3744)
arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.(CVE-2021-38300)
A use-after-free flaw was found in the Linux kernel&apos;s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.(CVE-2021-3752)
A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.(CVE-2021-20317)
prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel through 5.14.9 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.(CVE-2021-41864)
The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.(CVE-2021-42008)</Note>
<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for kernel is now available for openEuler-20.03-LTS-SP1 and openEuler-20.03-LTS-SP2.
openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.</Note>
<Note Title="Severity" Type="General" Ordinal="5" xml:lang="en">High</Note>
<Note Title="Affected Component" Type="General" Ordinal="6" xml:lang="en">kernel</Note>
</DocumentNotes>
<DocumentReferences>
<Reference Type="Self">
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Reference>
<Reference Type="openEuler CVE">
<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-3669</URL>
<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-3764</URL>
<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-3744</URL>
<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-38300</URL>
<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-3752</URL>
<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-20317</URL>
<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-41864</URL>
<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-42008</URL>
</Reference>
<Reference Type="Other">
<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-3669</URL>
<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-3764</URL>
<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-3744</URL>
<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-38300</URL>
<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-3752</URL>
<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-20317</URL>
<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-41864</URL>
<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-42008</URL>
</Reference>
</DocumentReferences>
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<Vulnerability Ordinal="1" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
<Notes>
<Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.</Note>
</Notes>
<ReleaseDate>2021-10-15</ReleaseDate>
<CVE>CVE-2021-3669</CVE>
<ProductStatuses>
<Status Type="Fixed">
<ProductID>openEuler-20.03-LTS-SP1</ProductID>
<ProductID>openEuler-20.03-LTS-SP2</ProductID>
</Status>
</ProductStatuses>
<Threats>
<Threat Type="Impact">
<Description>Medium</Description>
</Threat>
</Threats>
<CVSSScoreSets>
<ScoreSet>
<BaseScore>5.5</BaseScore>
<Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</Vector>
</ScoreSet>
</CVSSScoreSets>
<Remediations>
<Remediation Type="Vendor Fix">
<Description>kernel security update</Description>
<DATE>2021-10-15</DATE>
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Remediation>
</Remediations>
</Vulnerability>
<Vulnerability Ordinal="2" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
<Notes>
<Note Title="Vulnerability Description" Type="General" Ordinal="2" xml:lang="en"></Note>
</Notes>
<ReleaseDate>2021-10-15</ReleaseDate>
<CVE>CVE-2021-3764</CVE>
<ProductStatuses>
<Status Type="Fixed">
<ProductID>openEuler-20.03-LTS-SP1</ProductID>
<ProductID>openEuler-20.03-LTS-SP2</ProductID>
</Status>
</ProductStatuses>
<Threats>
<Threat Type="Impact">
<Description>Medium</Description>
</Threat>
</Threats>
<CVSSScoreSets>
<ScoreSet>
<BaseScore>5.5</BaseScore>
<Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</Vector>
</ScoreSet>
</CVSSScoreSets>
<Remediations>
<Remediation Type="Vendor Fix">
<Description>kernel security update</Description>
<DATE>2021-10-15</DATE>
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Remediation>
</Remediations>
</Vulnerability>
<Vulnerability Ordinal="3" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
<Notes>
<Note Title="Vulnerability Description" Type="General" Ordinal="3" xml:lang="en"></Note>
</Notes>
<ReleaseDate>2021-10-15</ReleaseDate>
<CVE>CVE-2021-3744</CVE>
<ProductStatuses>
<Status Type="Fixed">
<ProductID>openEuler-20.03-LTS-SP1</ProductID>
<ProductID>openEuler-20.03-LTS-SP2</ProductID>
</Status>
</ProductStatuses>
<Threats>
<Threat Type="Impact">
<Description>Medium</Description>
</Threat>
</Threats>
<CVSSScoreSets>
<ScoreSet>
<BaseScore>5.5</BaseScore>
<Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</Vector>
</ScoreSet>
</CVSSScoreSets>
<Remediations>
<Remediation Type="Vendor Fix">
<Description>kernel security update</Description>
<DATE>2021-10-15</DATE>
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Remediation>
</Remediations>
</Vulnerability>
<Vulnerability Ordinal="4" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
<Notes>
<Note Title="Vulnerability Description" Type="General" Ordinal="4" xml:lang="en">arch/mips/net/bpf_jit.c in the Linux kernel through 5.14.6 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.</Note>
</Notes>
<ReleaseDate>2021-10-15</ReleaseDate>
<CVE>CVE-2021-38300</CVE>
<ProductStatuses>
<Status Type="Fixed">
<ProductID>openEuler-20.03-LTS-SP1</ProductID>
<ProductID>openEuler-20.03-LTS-SP2</ProductID>
</Status>
</ProductStatuses>
<Threats>
<Threat Type="Impact">
<Description>High</Description>
</Threat>
</Threats>
<CVSSScoreSets>
<ScoreSet>
<BaseScore>7.8</BaseScore>
<Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</Vector>
</ScoreSet>
</CVSSScoreSets>
<Remediations>
<Remediation Type="Vendor Fix">
<Description>kernel security update</Description>
<DATE>2021-10-15</DATE>
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Remediation>
</Remediations>
</Vulnerability>
<Vulnerability Ordinal="5" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
<Notes>
<Note Title="Vulnerability Description" Type="General" Ordinal="5" xml:lang="en">A use-after-free flaw was found in the Linux kernel&apos;s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.</Note>
</Notes>
<ReleaseDate>2021-10-15</ReleaseDate>
<CVE>CVE-2021-3752</CVE>
<ProductStatuses>
<Status Type="Fixed">
<ProductID>openEuler-20.03-LTS-SP1</ProductID>
<ProductID>openEuler-20.03-LTS-SP2</ProductID>
</Status>
</ProductStatuses>
<Threats>
<Threat Type="Impact">
<Description>Medium</Description>
</Threat>
</Threats>
<CVSSScoreSets>
<ScoreSet>
<BaseScore>6.4</BaseScore>
<Vector>AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H</Vector>
</ScoreSet>
</CVSSScoreSets>
<Remediations>
<Remediation Type="Vendor Fix">
<Description>kernel security update</Description>
<DATE>2021-10-15</DATE>
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Remediation>
</Remediations>
</Vulnerability>
<Vulnerability Ordinal="6" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
<Notes>
<Note Title="Vulnerability Description" Type="General" Ordinal="6" xml:lang="en">A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.</Note>
</Notes>
<ReleaseDate>2021-10-15</ReleaseDate>
<CVE>CVE-2021-20317</CVE>
<ProductStatuses>
<Status Type="Fixed">
<ProductID>openEuler-20.03-LTS-SP1</ProductID>
<ProductID>openEuler-20.03-LTS-SP2</ProductID>
</Status>
</ProductStatuses>
<Threats>
<Threat Type="Impact">
<Description>Medium</Description>
</Threat>
</Threats>
<CVSSScoreSets>
<ScoreSet>
<BaseScore>4.4</BaseScore>
<Vector>AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H</Vector>
</ScoreSet>
</CVSSScoreSets>
<Remediations>
<Remediation Type="Vendor Fix">
<Description>kernel security update</Description>
<DATE>2021-10-15</DATE>
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Remediation>
</Remediations>
</Vulnerability>
<Vulnerability Ordinal="7" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
<Notes>
<Note Title="Vulnerability Description" Type="General" Ordinal="7" xml:lang="en">prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel through 5.14.9 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.</Note>
</Notes>
<ReleaseDate>2021-10-15</ReleaseDate>
<CVE>CVE-2021-41864</CVE>
<ProductStatuses>
<Status Type="Fixed">
<ProductID>openEuler-20.03-LTS-SP1</ProductID>
<ProductID>openEuler-20.03-LTS-SP2</ProductID>
</Status>
</ProductStatuses>
<Threats>
<Threat Type="Impact">
<Description>High</Description>
</Threat>
</Threats>
<CVSSScoreSets>
<ScoreSet>
<BaseScore>7.8</BaseScore>
<Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</Vector>
</ScoreSet>
</CVSSScoreSets>
<Remediations>
<Remediation Type="Vendor Fix">
<Description>kernel security update</Description>
<DATE>2021-10-15</DATE>
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Remediation>
</Remediations>
</Vulnerability>
<Vulnerability Ordinal="8" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
<Notes>
<Note Title="Vulnerability Description" Type="General" Ordinal="8" xml:lang="en">The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.</Note>
</Notes>
<ReleaseDate>2021-10-15</ReleaseDate>
<CVE>CVE-2021-42008</CVE>
<ProductStatuses>
<Status Type="Fixed">
<ProductID>openEuler-20.03-LTS-SP1</ProductID>
<ProductID>openEuler-20.03-LTS-SP2</ProductID>
</Status>
</ProductStatuses>
<Threats>
<Threat Type="Impact">
<Description>Medium</Description>
</Threat>
</Threats>
<CVSSScoreSets>
<ScoreSet>
<BaseScore>5.9</BaseScore>
<Vector>AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H</Vector>
</ScoreSet>
</CVSSScoreSets>
<Remediations>
<Remediation Type="Vendor Fix">
<Description>kernel security update</Description>
<DATE>2021-10-15</DATE>
<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1379</URL>
</Remediation>
</Remediations>
</Vulnerability>
</cvrfdoc>
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