VulnerabilityModified

CVE-2017-5884

gtk-vnc before 0.7.0 does not properly check boundaries of subrectangle-containing tiles, which allows remote servers to execute arbitrary code via the src x, y coordinates in a crafted (1) rre, (2) hextile, or (3) copyrect tile.

HIGH 7.8EPSS 2.24%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CVSS 3.0: 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 2.24% probability · 82th percentile
CISA KEV: Not listed
Weakness: CWE-118
Affected: fedoraproject/fedora · gnome/gtk-vnc
Source: secalert@redhat.com

References

http://www.openwall.com/lists/oss-security/2017/02/03/5Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/05/5Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/96016Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:2258
https://bugzilla.gnome.org/show_bug.cgi?id=778048Exploit, Issue Tracking
https://git.gnome.org/browse/gtk-vnc/commit/?id=ea0386933214c9178aaea9f2f85049ea3fa3e14aPatch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LGPQ5MQR6SN4DYTEFACHP2PP5RR26KYK/
http://www.openwall.com/lists/oss-security/2017/02/03/5Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/05/5Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/96016Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:2258
https://bugzilla.gnome.org/show_bug.cgi?id=778048Exploit, Issue Tracking
https://git.gnome.org/browse/gtk-vnc/commit/?id=ea0386933214c9178aaea9f2f85049ea3fa3e14aPatch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LGPQ5MQR6SN4DYTEFACHP2PP5RR26KYK/

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.