libcdio: NULL pointer dereference in realloc_symlink in rock.c
Published Feb 24, 2018
6.5
MEDIUMCVSS 3.0
EPSS 3.27%
Description
realloc_symlink in rock.c in GNU libcdio before 1.0.0 allows remote attackers to cause a denial of service (NULL Pointer Dereference) via a crafted iso file.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
libcdio-0:0.92-3.el7
Fixed · RHSA-2018:3246
Red Hat Enterprise Linux 6
libcdio
Affected
Red Hat Enterprise Linux 8
libcdio
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | libcdio-0:0.92-3.el7 | Fixed | RHSA-2018:3246 |
| Red Hat Enterprise Linux 6 | libcdio | Affected | n/a |
| Red Hat Enterprise Linux 8 | libcdio | Not affected | 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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 | 3.27% (0.03270) | 87.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.45% (0.03455) | 87.45th | v5 (v2026.06.15) |
| Jan 1, 2026 | 1.85% (0.01853) | 82.64th | v4 (v2025.03.14) |
| Aug 11, 2025 | 0.60% (0.00602) | 68.49th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.63% (0.01625) | 80.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.92% (0.07918) | 86.47th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.67% (0.01670) | 80.85th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.17% (0.00165) | 54.47th | v3 (v2023.03.01) |
| Jul 18, 2023 | 0.17% (0.00165) | 52.28th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00240) | 60.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.62% (0.01623) | 33.90th | v1 |
| Jan 6, 2022 | 1.62% (0.01623) | 33.20th | v1 |
| Sep 1, 2021 | 1.62% (0.01623) | 73.32th | v1 |
| Apr 14, 2021 | 1.62% (0.01623) | 0.00th | v1 |
References (8)
- http://ftp.gnu.org/gnu/libcdio/libcdio-1.0.0.tar.gz x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/103202 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:3246 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2017-18199 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1549701 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-18199
- https://savannah.gnu.org/bugs/?52264 x_refsource_CONFIRMExploitThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-18199
| Link | Providers | Tags |
|---|---|---|
| http://ftp.gnu.org/gnu/libcdio/libcdio-1.0.0.tar.gz | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/103202 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2018:3246 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2017-18199 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1549701 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-18199 | ||
| https://savannah.gnu.org/bugs/?52264 | x_refsource_CONFIRMExploitThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-18199 |
Change history (0)
No recorded changes yet.