CVE-2017-7394 — Improper Input Validation in Tigervnc

CWE-20 — Improper Input ValidationCWE-190 — Integer Overflow or Wraparound7 documents6 sources
Severity
7.5HIGHNVD
EPSS
2.8%
top 13.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
TigervncDebian Tigervnc
Timeline
PublishedApr 1
Latest updateMay 14

Description

In TigerVNC 1.7.1 (SSecurityPlain.cxx SSecurityPlain::processMsg), unauthenticated users can crash the server by sending long usernames.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/tigervnc< tigervnc 1.7.0+dfsg-7 (bookworm)
▶Debiantigervnc/tigervnc< 1.7.0+dfsg-7+3

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-p2f4-v5gm-9wqj: In TigerVNC 1↗2022-05-14
▶
OSV
CVE-2017-7394: In TigerVNC 1↗2017-04-01
▶

📋Vendor Advisories

2
Red Hat
tigervnc: Server crash via long usernames↗2017-03-29
▶
Debian
CVE-2017-7394: tigervnc - In TigerVNC 1.7.1 (SSecurityPlain.cxx SSecurityPlain::processMsg), unauthenticat...↗2017
▶

💬Community

2
Bugzilla
CVE-2017-7392 CVE-2017-7393 CVE-2017-7394 CVE-2017-7395 CVE-2017-7396 tigervnc: various flaws [fedora-all]↗2017-04-04
▶
Bugzilla
CVE-2017-7394 tigervnc: Server crash via long usernames↗2017-04-04
▶
CVE-2017-7394 — Improper Input Validation in Tigervnc | cvebase