CVE-2019-15691high
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
References
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html
https://github.com/CendioOssman/tigervnc/commit/d61a767d6842b530ffb532ddd5a3d233119aad40
Details
Source: MITRE
Published: 2019-12-26
Updated: 2020-01-21
Type: CWE-672
Risk Information
CVSS v2
Base Score: 6.5
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8
Severity: MEDIUM
CVSS v3
Base Score: 7.2
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.2
Severity: HIGH
Vulnerable Software
Configuration 1
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 147375 | NewStart CGSL CORE 5.04 / MAIN 5.04 : tigervnc Multiple Vulnerabilities (NS-SA-2021-0035) | Nessus | NewStart CGSL Local Security Checks | high |
| 146755 | EulerOS 2.0 SP2 : tigervnc (EulerOS-SA-2021-1369) | Nessus | Huawei Local Security Checks | high |
| 146169 | EulerOS 2.0 SP5 : tigervnc (EulerOS-SA-2021-1237) | Nessus | Huawei Local Security Checks | high |
| 146003 | CentOS 8 : tigervnc (CESA-2020:1497) | Nessus | CentOS Local Security Checks | high |
| 145143 | EulerOS 2.0 SP3 : tigervnc (EulerOS-SA-2021-1127) | Nessus | Huawei Local Security Checks | high |
| 144989 | Amazon Linux AMI : tigervnc (ALAS-2021-1470) | Nessus | Amazon Linux Local Security Checks | high |
| 144468 | Amazon Linux AMI : tigervnc (ALAS-2020-1470) (deprecated) | Nessus | Amazon Linux Local Security Checks | high |
| 141997 | Amazon Linux 2 : tigervnc (ALAS-2020-1552) | Nessus | Amazon Linux Local Security Checks | high |
| 141653 | Scientific Linux Security Update : tigervnc on SL7.x x86_64 (20201001) | Nessus | Scientific Linux Local Security Checks | high |
| 141600 | CentOS 7 : tigervnc (CESA-2020:3875) | Nessus | CentOS Local Security Checks | high |
| 141215 | Oracle Linux 7 : tigervnc (ELSA-2020-3875) | Nessus | Oracle Linux Local Security Checks | high |
| 141028 | RHEL 7 : tigervnc (RHSA-2020:3875) | Nessus | Red Hat Local Security Checks | high |
| 139988 | EulerOS 2.0 SP8 : tigervnc (EulerOS-SA-2020-1885) | Nessus | Huawei Local Security Checks | high |
| 138772 | NewStart CGSL MAIN 6.01 : tigervnc Multiple Vulnerabilities (NS-SA-2020-0032) | Nessus | NewStart CGSL Local Security Checks | high |
| 138296 | SUSE SLES12 Security Update : tigervnc (SUSE-SU-2020:1749-1) | Nessus | SuSE Local Security Checks | high |
| 135876 | RHEL 8 : tigervnc (RHSA-2020:1497) | Nessus | Red Hat Local Security Checks | high |
| 135748 | Oracle Linux 8 : tigervnc (ELSA-2020-1497) | Nessus | Oracle Linux Local Security Checks | high |
| 133395 | SUSE SLES12 Security Update : tigervnc (SUSE-SU-2020:0266-1) | Nessus | SuSE Local Security Checks | high |
| 133201 | SUSE SLES12 Security Update : tigervnc (SUSE-SU-2020:0159-1) | Nessus | SuSE Local Security Checks | high |
| 133173 | openSUSE Security Update : tigervnc (openSUSE-2020-87) | Nessus | SuSE Local Security Checks | high |
| 133035 | SUSE SLED15 / SLES15 Security Update : tigervnc (SUSE-SU-2020:0113-1) | Nessus | SuSE Local Security Checks | high |
| 133034 | SUSE SLED15 / SLES15 Security Update : tigervnc (SUSE-SU-2020:0112-1) | Nessus | SuSE Local Security Checks | high |