squashfs-tools: stack overflow in read_fragment_table_4 due to fix for CVE-2015-4645
Published Apr 13, 2017
7.5
HIGHCVSS 3.1
EPSS 6.91%
Description
(1) unsquash-1.c, (2) unsquash-2.c, (3) unsquash-3.c, and (4) unsquash-4.c in Squashfs and sasquatch allow remote attackers to cause a denial of service (application crash) via a crafted input.
Affected products
No data.
- ≤ 4.3
No data.
Red Hat Enterprise Linux 5
squashfs-tools
Will not fix
Red Hat Enterprise Linux 6
squashfs-tools
Will not fix
Red Hat Enterprise Linux 7
squashfs-tools
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | squashfs-tools | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | squashfs-tools | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | squashfs-tools | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.91% (0.06910) | 93.89th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.91% (0.06910) | 93.24th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.93% (0.00934) | 74.06th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.79% (0.10785) | 88.87th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.71% (0.00711) | 70.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.56% (0.00559) | 78.39th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.56% (0.00559) | 76.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.56% (0.00559) | 74.22th | 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) |
References (8)
- http://seclists.org/oss-sec/2015/q2/756 mailing-listx_refsource_MLISTMailing ListThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/75272 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-4646 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1234887 Issue Tracking
- https://github.com/plougher/squashfs-tools/commit/f95864afe8833fe3ad782d714b41378e860977b1 x_refsource_CONFIRMThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-4646
- https://security.gentoo.org/glsa/201701-73 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-4646
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/oss-sec/2015/q2/756 | mailing-listx_refsource_MLISTMailing ListThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/bid/75272 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2015-4646 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1234887 | Issue Tracking | |
| https://github.com/plougher/squashfs-tools/commit/f95864afe8833fe3ad782d714b41378e860977b1 | x_refsource_CONFIRMThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-4646 | ||
| https://security.gentoo.org/glsa/201701-73 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2015-4646 |
Change history (0)
No recorded changes yet.