Vulnerability Details : CVE-2015-4645
Integer overflow in the read_fragment_table_4 function in unsquash-4.c in Squashfs and sasquatch allows remote attackers to cause a denial of service (application crash) via a crafted input, which triggers a stack-based buffer overflow.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2015-4645
- cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
- cpe:2.3:a:squashfs_project:squashfs:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-4645
1.00%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 83 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-4645
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2015-4645
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-4645
-
https://security.gentoo.org/glsa/201701-73
SQUASHFS: Multiple vulnerabilities (GLSA 201701-73) — Gentoo securityThird Party Advisory;VDB Entry
-
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162226.html
[SECURITY] Fedora 21 Update: squashfs-tools-4.3-11.fc21Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1234886
1234886 – (CVE-2015-4645) CVE-2015-4645 squashfs-tools: integer overflow in read_fragment_table_4Issue Tracking;Third Party Advisory;VDB Entry
-
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162171.html
[SECURITY] Fedora 22 Update: squashfs-tools-4.3-11.fc22Third Party Advisory
-
https://github.com/devttys0/sasquatch/pull/5
read_fragment_table_n: Fix recommendation for stack overflow. · Pull Request #5 · devttys0/sasquatch · GitHubThird Party Advisory
-
https://github.com/plougher/squashfs-tools/commit/f95864afe8833fe3ad782d714b41378e860977b1
unsquashfs-4: Add more sanity checks + fix CVE-2015-4645/6 · plougher/squashfs-tools@f95864a · GitHubThird Party Advisory
-
http://www.securityfocus.com/bid/75272
Squashfs and sasquatch 'read_fragment_table_4' Multiple Stack Buffer Overflow VulnerabilitiesThird Party Advisory;VDB Entry
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