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Vulnerability details: VCID-ymcd-vs51-aaaa
Vulnerability ID VCID-ymcd-vs51-aaaa
Aliases CVE-2022-3775
Summary When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
Status Published
Exploitability 0.5
Weighted Severity 6.4
Risk 3.2
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 7.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-3775.json
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epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2022-3775
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cvssv3.1 6.4 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3 7.1 https://nvd.nist.gov/vuln/detail/CVE-2022-3775
cvssv3.1 7.1 https://nvd.nist.gov/vuln/detail/CVE-2022-3775
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-3775.json
https://access.redhat.com/security/cve/cve-2022-3775
https://api.first.org/data/v1/epss?cve=CVE-2022-3775
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2601
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3775
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2138880 https://bugzilla.redhat.com/show_bug.cgi?id=2138880
cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CVE-2022-3775 https://nvd.nist.gov/vuln/detail/CVE-2022-3775
GLSA-202311-14 https://security.gentoo.org/glsa/202311-14
RHSA-2022:8494 https://access.redhat.com/errata/RHSA-2022:8494
RHSA-2022:8800 https://access.redhat.com/errata/RHSA-2022:8800
RHSA-2022:8978 https://access.redhat.com/errata/RHSA-2022:8978
RHSA-2023:0047 https://access.redhat.com/errata/RHSA-2023:0047
RHSA-2023:0048 https://access.redhat.com/errata/RHSA-2023:0048
RHSA-2023:0049 https://access.redhat.com/errata/RHSA-2023:0049
RHSA-2023:0752 https://access.redhat.com/errata/RHSA-2023:0752
USN-6355-1 https://usn.ubuntu.com/6355-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-3775.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

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H 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

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-3775
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

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-3775
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

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.13628
EPSS Score 0.00044
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.