CVE-2019-15695

TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow, which could be triggered from CMsgReader::readSetCursor. This vulnerability occurs due to insufficient sanitization of PixelFormat. Since remote attacker can choose offset from start of the buffer to start writing his values, exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

CVSS v3.0 7.2 HIGH
CVSS v2.0 6.5 MEDIUM

7.2^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1	Patch Third Party Advisory
https://github.com/CendioOssman/tigervnc/commit/05e28490873a861379c943bf616614b78b558b89	Patch Third Party Advisory
https://www.openwall.com/lists/oss-security/2019/12/20/2	Exploit Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:tigervnc:tigervnc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

Information

Published : 2019-12-26 08:15

Updated : 2020-10-16 13:00

NVD link : CVE-2019-15695

Mitre link : CVE-2019-15695

JSON object : View

CWE

CWE-787

Out-of-bounds Write

CWE-754

Improper Check for Unusual or Exceptional Conditions

Products Affected

tigervnc

tigervnc

opensuse

leap

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