Vulnerability Details : CVE-2017-5885
Potential exploit
Multiple integer overflows in the (1) vnc_connection_server_message and (2) vnc_color_map_set functions in gtk-vnc before 0.7.0 allow remote servers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving SetColorMapEntries, which triggers a buffer overflow.
Vulnerability category: OverflowExecute codeDenial of service
Products affected by CVE-2017-5885
- cpe:2.3:a:gnome:gtk-vnc:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-5885
0.65%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-5885
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-5885
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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-2017-5885
-
https://access.redhat.com/errata/RHSA-2017:2258
RHSA-2017:2258 - Security Advisory - Red Hat Customer Portal
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http://www.openwall.com/lists/oss-security/2017/02/05/5
oss-security - Re: CVE request for two input validation flaws in gtk-vncMailing List;Third Party Advisory
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http://www.securityfocus.com/bid/96016
gtk-vnc Remote Code Execution Vulnerability and Multiple Integer Overflow VulnerabilitiesThird Party Advisory;VDB Entry
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LGPQ5MQR6SN4DYTEFACHP2PP5RR26KYK/
[SECURITY] Fedora 25 Update: gtk-vnc-0.7.0-1.fc25 - package-announce - Fedora Mailing-Lists
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https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590fcb7bae4ce6e7344963e
Correctly validate color map range indexes (c8583fd3) · Commits · GNOME / gtk-vnc · GitLabIssue Tracking;Patch;Vendor Advisory
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https://bugzilla.gnome.org/show_bug.cgi?id=778050
Bug 778050 – Integer overflow when processing SetColorMapEntriesExploit;Issue Tracking;Vendor Advisory
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http://www.openwall.com/lists/oss-security/2017/02/03/5
oss-security - CVE request for two input validation flaws in gtk-vncMailing List;Third Party Advisory
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