High severity7.2NVD Advisory· Published Dec 26, 2019· Updated Jun 17, 2026
CVE-2019-15691
CVE-2019-15691
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
27- osv-coords23 versionspkg:rpm/opensuse/tigervnc&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/tigervnc&distro=openSUSE%20Tumbleweedpkg:rpm/suse/tigervnc&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/tigervnc&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP1pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/tigervnc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/tigervnc&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/tigervnc&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/tigervnc&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208
< 1.9.0-lp151.4.3.1+ 22 more
- (no CPE)range: < 1.9.0-lp151.4.3.1
- (no CPE)range: < 1.10.1-17.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.8.0-13.11.1
- (no CPE)range: < 1.9.0-19.3.1
- (no CPE)range: < 1.8.0-13.11.1
- (no CPE)range: < 1.9.0-19.3.1
- (no CPE)range: < 1.4.3-25.11.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-22.14.1
- (no CPE)range: < 1.6.0-22.14.1
- (no CPE)range: < 1.4.3-25.11.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-22.14.1
- (no CPE)range: < 1.6.0-22.14.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-18.28.1
- (no CPE)range: < 1.6.0-18.28.1
- Kaspersky/TigerVNCv5Range: 1.10.0
Patches
Vulnerability mechanics
References
4- github.com/CendioOssman/tigervnc/commit/d61a767d6842b530ffb532ddd5a3d233119aad40nvdPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2019/12/20/2nvdExploitMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.htmlnvdThird Party Advisory
- github.com/TigerVNC/tigervnc/releases/tag/v1.10.1nvdRelease NotesThird Party Advisory
News mentions
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