CVE-2019-15692
tigervnc: Heap buffer overflow triggered from CopyRectDecoder due to incorrect value checks
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow. Vulnerability could be triggered from CopyRectDecoder due to incorrect value checks. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
TigerVNC versiones anteriores a 1.10.1, es vulnerable al desbordamiento de búfer de la pila. La vulnerabilidad podría ser activada desde la función CopyRectDecoder debido a comprobaciones de valores incorrectas. La explotación de esta vulnerabilidad podría resultar potencialmente en una ejecución de código remota. Este ataque parece ser explotable a través de la conectividad de red.
An update that fixes 5 vulnerabilities is now available. This update for tigervnc fixes the following issues. Fixed a use-after-return due to incorrect usage of stack memory in ZRLEDecoder. Fixed a heap-based buffer overflow in CopyRectDecode. Fixed a heap-based buffer overflow in TightDecoder::FilterGradient. Fixed a heap-based buffer overflow, caused by improper error handling in processing MemOutStream. Fixed a stack-based buffer overflow, which could be triggered from CMsgReader::readSetCursor. This update was imported from the SUSE:SLE-15-SP1:Update update project.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-08-27 CVE Reserved
- 2019-12-26 CVE Published
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- 2025-06-19 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-122: Heap-based Buffer Overflow
- CWE-787: Out-of-bounds Write
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 | Release Notes |
| URL | Date | SRC |
|---|---|---|
| https://www.openwall.com/lists/oss-security/2019/12/20/2 | 2024-08-05 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/CendioOssman/tigervnc/commit/996356b6c65ca165ee1ea46a571c32a1dc3c3821 | 2022-12-22 |
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html | 2022-12-22 | |
| https://access.redhat.com/security/cve/CVE-2019-15692 | 2020-09-29 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1789527 | 2020-09-29 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Tigervnc Search vendor "Tigervnc" | Tigervnc Search vendor "Tigervnc" for product "Tigervnc" | < 1.10.1 Search vendor "Tigervnc" for product "Tigervnc" and version " < 1.10.1" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||