Ubuntu.comUB:CVE-2019-15680CVE-2019-15680
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.004 Low
EPSS
Percentile
74.3%
TightVNC code version 1.3.10 contains null pointer dereference in
HandleZlibBPP function, which results Denial of System (DoS). This attack
appear to be exploitable via network connectivity.
Bugs
Notes
| Author | Note |
|---|---|
| mdeslaur | per upstream, this is a non-issue in libvncserver as checks are already done in zlib, see: https://github.com/LibVNC/libvncserver/issues/359#issuecomment-599133529 for completeness, the fix was added to focal and earlier releases, but will not be added to groovy+ |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | libvncserver | < 0.9.11+dfsg-1ubuntu1.2 | UNKNOWN |
| ubuntu | 19.10 | noarch | libvncserver | < 0.9.11+dfsg-1.3ubuntu0.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | libvncserver | < 0.9.12+dfsg-9ubuntu0.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | libvncserver | < 0.9.10+dfsg-3ubuntu0.16.04.4 | UNKNOWN |
| ubuntu | 18.04 | noarch | ssvnc | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | ssvnc | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | ssvnc | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | ssvnc | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | ssvnc | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | tightvnc | < any | UNKNOWN |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.004 Low
EPSS
Percentile
74.3%