HIGH
libexif: Input validation issue resulting in a denial of service
Published Feb 20, 2019
7.5
HIGHCVSS 3.0
EPSS 3.80%
Description
An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.
Affected products
-
- Version 0.6.21StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Flexera Software LLC | Libexif | n/a |
|
- 0.6.21
No data.
Red Hat Enterprise Linux 5
libexif
Will not fix
Red Hat Enterprise Linux 6
libexif
Will not fix
Red Hat Enterprise Linux 7
libexif
Fix deferred
Red Hat Enterprise Linux 8
libexif
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | libexif | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | libexif | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | libexif | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | libexif | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
1 other source (Red Hat) ▾
5.5 MEDIUM Red Hat
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.80% 0.03798
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03798
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.80% (0.03798) | 89.66th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.80% (0.03798) | 88.58th | v5 (v2026.06.15) |
| Nov 21, 2025 | 1.06% (0.01058) | 76.95th | v4 (v2025.03.14) |
| Nov 18, 2025 | 2.41% (0.02406) | 83.75th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.05% (0.01051) | 75.56th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.78% (0.03777) | 79.87th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.71% (0.00708) | 80.63th | v3 (v2023.03.01) |
| Mar 4, 2024 | 0.71% (0.00708) | 79.89th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.77% (0.00768) | 80.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.61% (0.00608) | 75.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.66% (0.01659) | 34.20th | v1 |
| Jan 6, 2022 | 1.66% (0.01659) | 33.50th | v1 |
| Sep 1, 2021 | 1.66% (0.01659) | 73.96th | v1 |
| Apr 14, 2021 | 1.66% (0.01659) | 0.00th | v1 |
References (12)
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00000.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html vendor-advisoryx_refsource_SUSE
- https://access.redhat.com/security/cve/CVE-2018-20030 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1663878 Issue Tracking
- https://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89 x_refsource_MISCPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00016.html mailing-listx_refsource_MLIST
- https://lists.debian.org/debian-lts-announce/2020/05/msg00025.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-20030
- https://seclists.org/bugtraq/2018/Dec/31
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-28/ x_refsource_MISCThird Party Advisory
- https://usn.ubuntu.com/4358-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2018-20030
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00000.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html | vendor-advisoryx_refsource_SUSE | |
| https://access.redhat.com/security/cve/CVE-2018-20030 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1663878 | Issue Tracking | |
| https://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89 | x_refsource_MISCPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2020/05/msg00016.html | mailing-listx_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2020/05/msg00025.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-20030 | ||
| https://seclists.org/bugtraq/2018/Dec/31 | ||
| https://secuniaresearch.flexerasoftware.com/secunia_research/2018-28/ | x_refsource_MISCThird Party Advisory | |
| https://usn.ubuntu.com/4358-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2018-20030 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner flexera
Published Feb 20, 2019
Updated Sep 17, 2024
Reserved Dec 10, 2018
Link CVE-2018-20030
CISA Vulnrichment
Updated n/a