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CVE-2021-45417

26
FAUCET Score

CVE-2021-45417 is a heap-based buffer overflow vulnerability in AIDE versions prior to 0.17.4, allowing local attackers to gain root privileges through crafted file metadata. With a CVSS score of 7.8 (High), this vulnerability requires local access and low privileges, but can lead to complete compromise of confidentiality, integrity, and availability. While it affects various Linux distributions including Canonical, Debian, Fedora, and Red Hat, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.13, <= 0.17.3CPE matchmatch criteria
cpe:2.3:a:advanced_intrusion_detection_environment_project:advanced_intrusion_detection_environment:*:*:*:*:*:*:*:*
4.4.10CPE matchmatch criteria
cpe:2.3:a:redhat:ovirt-node:4.4.10:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.49%
Probability of exploitation in next 30 days
EPSS Percentile
39.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0049 is in the 79th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 Extended Lifecycle SupportFixed in: aide-0:0.14-11.el6_10.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: aide-0:0.15.1-13.el7_9.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: aide-0:0.16-14.el8_5.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: aide-0:0.16-11.el8_1.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: aide-0:0.16-11.el8_2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: aide-0:0.16-14.el8_4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 7Fixed in: redhat-virtualization-host-0:4.3.22-20220330.1.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Fixed in: redhat-virtualization-host-0:4.4.10-202202081536_8.5
View patch

Vendor Advisories (1)

redhatCVE-2021-45417Important

aide: heap-based buffer overflow on outputs larger than B64_BUF

Jan 20, 2022

References

lists.debian.org / debian-lts-announce/2022/01/msg00024.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202311-07
debian.org / security/2022/dsa-5051
Third Party Advisory
ipi.fi / pipermail/aide/2022-January/001713.html
ExploitMailing ListMitigationPatchThird Party Advisory
openwall.com / lists/oss-security/2022/01/20/3
ExploitMailing ListMitigationPatchThird Party Advisory
openwall.com / lists/oss-security/2022/01/20/3
ExploitMailing ListMitigationPatchThird Party Advisory