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Vulnerability details: VCID-mx2f-mju7-2kcj
Vulnerability ID VCID-mx2f-mju7-2kcj
Aliases CVE-2022-3437
Summary A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the application, possibly resulting in a denial of service (DoS) attack.
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-122 Heap-based Buffer Overflow
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 5.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-3437.json
cvssv3.1 4.3 https://access.redhat.com/security/cve/CVE-2022-3437
ssvc Track https://access.redhat.com/security/cve/CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00501 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00545 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
epss 0.00712 https://api.first.org/data/v1/epss?cve=CVE-2022-3437
cvssv3.1 4.3 https://bugzilla.redhat.com/show_bug.cgi?id=2137774
ssvc Track https://bugzilla.redhat.com/show_bug.cgi?id=2137774
cvssv3.1 5.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 4.3 https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
ssvc Track https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2022-3437
archlinux Unknown https://security.archlinux.org/AVG-2828
cvssv3.1 4.3 https://security.gentoo.org/glsa/202309-06
ssvc Track https://security.gentoo.org/glsa/202309-06
cvssv3.1 4.3 https://security.gentoo.org/glsa/202310-06
ssvc Track https://security.gentoo.org/glsa/202310-06
cvssv3.1 4.3 https://security.netapp.com/advisory/ntap-20230216-0008/
ssvc Track https://security.netapp.com/advisory/ntap-20230216-0008/
cvssv3.1 4.3 https://www.samba.org/samba/security/CVE-2022-3437.html
ssvc Track https://www.samba.org/samba/security/CVE-2022-3437.html
cvssv3.1 4.3 http://www.openwall.com/lists/oss-security/2023/02/08/1
ssvc Track http://www.openwall.com/lists/oss-security/2023/02/08/1
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-3437.json
https://api.first.org/data/v1/epss?cve=CVE-2022-3437
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3671
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44758
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2127
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3437
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-41916
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-42898
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-44640
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34966
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34967
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34968
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4091
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1 http://www.openwall.com/lists/oss-security/2023/02/08/1
1024187 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1024187
202309-06 https://security.gentoo.org/glsa/202309-06
202310-06 https://security.gentoo.org/glsa/202310-06
AVG-2828 https://security.archlinux.org/AVG-2828
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
CVE-2022-3437 https://access.redhat.com/security/cve/CVE-2022-3437
CVE-2022-3437 https://nvd.nist.gov/vuln/detail/CVE-2022-3437
CVE-2022-3437.html https://www.samba.org/samba/security/CVE-2022-3437.html
msg00015.html https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
ntap-20230216-0008 https://security.netapp.com/advisory/ntap-20230216-0008/
show_bug.cgi?id=2137774 https://bugzilla.redhat.com/show_bug.cgi?id=2137774
USN-5800-1 https://usn.ubuntu.com/5800-1/
USN-5822-1 https://usn.ubuntu.com/5822-1/
USN-5936-1 https://usn.ubuntu.com/5936-1/
USN-7582-1 https://usn.ubuntu.com/7582-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-3437.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/security/cve/CVE-2022-3437
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-22T18:53:20Z/ Found at https://access.redhat.com/security/cve/CVE-2022-3437
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://bugzilla.redhat.com/show_bug.cgi?id=2137774
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-22T18:53:20Z/ Found at https://bugzilla.redhat.com/show_bug.cgi?id=2137774
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-22T18:53:20Z/ Found at https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-3437
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://security.gentoo.org/glsa/202309-06
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-22T18:53:20Z/ Found at https://security.gentoo.org/glsa/202309-06
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://security.gentoo.org/glsa/202310-06
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-22T18:53:20Z/ Found at https://security.gentoo.org/glsa/202310-06
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://security.netapp.com/advisory/ntap-20230216-0008/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-22T18:53:20Z/ Found at https://security.netapp.com/advisory/ntap-20230216-0008/
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://www.samba.org/samba/security/CVE-2022-3437.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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required

unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-22T18:53:20Z/ Found at https://www.samba.org/samba/security/CVE-2022-3437.html
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at http://www.openwall.com/lists/oss-security/2023/02/08/1
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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high

low

none

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low

none

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low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-22T18:53:20Z/ Found at http://www.openwall.com/lists/oss-security/2023/02/08/1
Exploit Prediction Scoring System (EPSS)
Percentile 0.64973
EPSS Score 0.00501
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:32:22.256612+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.22/main.json 37.0.0