CVE-2019-15695
Published: 26 December 2019
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
tigervnc Launchpad, Ubuntu, Debian |
hirsute |
Not vulnerable
(1.10.1+dfsg-1)
|
| jammy |
Not vulnerable
(1.10.1+dfsg-1)
|
|
| kinetic |
Not vulnerable
(1.10.1+dfsg-1)
|
|
| bionic |
Needs triage
|
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Not vulnerable
(1.10.1+dfsg-1)
|
|
| groovy |
Not vulnerable
(1.10.1+dfsg-1)
|
|
| impish |
Not vulnerable
(1.10.1+dfsg-1)
|
|
| lunar |
Not vulnerable
(1.10.1+dfsg-1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(1.10.1+dfsg-1)
|
|
| xenial |
Does not exist
|
|
| mantic |
Not vulnerable
(1.10.1+dfsg-1)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.2 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15695
- https://www.openwall.com/lists/oss-security/2019/12/20/2
- https://github.com/TigerVNC/tigervnc/commit/05e28490873a861379c943bf616614b78b558b89 (master)
- https://github.com/TigerVNC/tigervnc/commit/6c47340e095258a959c95db9aa2a6c715d62bf7c (v1.10.1)
- https://github.com/CendioOssman/tigervnc/commit/05e28490873a861379c943bf616614b78b558b89
- https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1
- NVD
- Launchpad
- Debian