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Vulnerability details: VCID-vfj5-racs-xub5
Vulnerability ID VCID-vfj5-racs-xub5
Aliases CVE-2021-27219
GHSL-2021-045
Summary An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. The function g_bytes_new has an integer overflow on 64-bit platforms due to an implicit cast from 64 bits to 32 bits. The overflow could potentially lead to memory corruption.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-681 Incorrect Conversion between Numeric Types
CWE-190 Integer Overflow or Wraparound
CWE-787 Out-of-bounds Write
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-27219.json
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
epss 0.0029 https://api.first.org/data/v1/epss?cve=CVE-2021-27219
cvssv3.1 6.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2021-27219
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-27219
archlinux Medium https://security.archlinux.org/AVG-1574
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-27219.json
https://api.first.org/data/v1/epss?cve=CVE-2021-27219
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27219
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://gitlab.gnome.org/GNOME/glib/-/issues/2319
https://lists.debian.org/debian-lts-announce/2022/06/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2REA7RVKN7ZHRLJOEGBRQKJIPZQPAELZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJMPNDO4GDVURYQFYKFOWY5HAF4FTEPN/
https://security.gentoo.org/glsa/202107-13
https://security.netapp.com/advisory/ntap-20210319-0004/
1929858 https://bugzilla.redhat.com/show_bug.cgi?id=1929858
982778 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982778
AVG-1574 https://security.archlinux.org/AVG-1574
cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*
cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
CVE-2021-27219 https://nvd.nist.gov/vuln/detail/CVE-2021-27219
RHSA-2021:2147 https://access.redhat.com/errata/RHSA-2021:2147
RHSA-2021:2170 https://access.redhat.com/errata/RHSA-2021:2170
RHSA-2021:2171 https://access.redhat.com/errata/RHSA-2021:2171
RHSA-2021:2172 https://access.redhat.com/errata/RHSA-2021:2172
RHSA-2021:2173 https://access.redhat.com/errata/RHSA-2021:2173
RHSA-2021:2174 https://access.redhat.com/errata/RHSA-2021:2174
RHSA-2021:2175 https://access.redhat.com/errata/RHSA-2021:2175
RHSA-2021:2203 https://access.redhat.com/errata/RHSA-2021:2203
RHSA-2021:2204 https://access.redhat.com/errata/RHSA-2021:2204
RHSA-2021:2467 https://access.redhat.com/errata/RHSA-2021:2467
RHSA-2021:2519 https://access.redhat.com/errata/RHSA-2021:2519
RHSA-2021:2522 https://access.redhat.com/errata/RHSA-2021:2522
RHSA-2021:4526 https://access.redhat.com/errata/RHSA-2021:4526
USN-4759-1 https://usn.ubuntu.com/4759-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-27219.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:L/PR:L/UI:R/S:U/C:L/I:L/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: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-27219
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-27219
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 0.47845
EPSS Score 0.00246
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:37:28.235800+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/4759-1/ 37.0.0