vulnwire
8.1high

CVE-2017-8288

gnome-shell 3.22 through 3.24.1 mishandles extensions that fail to reload, which can lead to leaving extensions enabled in the lock screen.

Published 9 y ago · modified 4 mo ago · JSON

CVSS
8.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.9%
percentile 87%
Public exploits
0
none known

gnome-shell 3.22 through 3.24.1 mishandles extensions that fail to reload, which can lead to leaving extensions enabled in the lock screen. With these extensions, a bystander could launch applications (but not interact with them), see information from the extensions (e.g., what applications you have opened or what music you were playing), or even execute arbitrary commands. It all depends on what extensions a user has enabled. The problem is caused by lack of exception handling in js/ui/extensionSystem.js.

Exploit prediction (EPSS)

2.94% probability of exploitation in the next 30 days, higher than 87% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.08.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.06.8AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • github.com /EasyScreenCast/EasyScreenCast/issues/46 · x_refsource_CONFIRM, x_transferred
  • bugzilla.gnome.org /show_bug.cgi?id=781728 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/98070 · vdb-entry, x_refsource_BID, x_transferred
  • bugs.kali.org /view.php?id=2513 · x_refsource_CONFIRM, x_transferred
  • github.com /GNOME/gnome-shell/commit/ff425d1db7082e2755d2a405af53861552acf2a1 · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.