CVEvulnerability
CVE-2019-15691
7.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-12-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-672, CWE-825
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.
Affected configurations
• tigervnc tigervnc (< 1.10.1)
• opensuse leap 15.1
Related
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html Third Party Advisory
- https://github.com/CendioOssman/tigervnc/commit/d61a767d6842b530ffb532ddd5a3d233119aad40 Patch, Third Party Advisory
- https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 Release Notes, 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 Third Party Advisory
- https://github.com/CendioOssman/tigervnc/commit/d61a767d6842b530ffb532ddd5a3d233119aad40 Patch, Third Party Advisory
- https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 Release Notes, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2019/12/20/2 Exploit, Mailing List, Third Party Advisory