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CVE-2019-15691

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 202407-14
Posted Jul 5, 2024
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202407-14 - Multiple vulnerabilities have been discovered in TigerVNC, the worst of which could lead to remote code execution. Versions greater than or equal to 1.12.0-r2 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2019-15691, CVE-2019-15692, CVE-2019-15694, CVE-2019-15695, CVE-2020-26117
SHA-256 | a06f93c1554c67258a4a817a80cdadbad517413f45d1a0899224d847bcf13a11
Red Hat Security Advisory 2020-3875-01
Posted Sep 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3875-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include a buffer overflow vulnerability.

tags | advisory, remote, overflow
systems | linux, redhat
advisories | CVE-2019-15691, CVE-2019-15692, CVE-2019-15693, CVE-2019-15694, CVE-2019-15695
SHA-256 | f5b8193e9c62c95edb5f2fee433b2b3d908af644160a87cf9fd3a5795ae98f63
Red Hat Security Advisory 2020-1497-01
Posted Apr 17, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1497-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include a buffer overflow vulnerability.

tags | advisory, remote, overflow
systems | linux, redhat
advisories | CVE-2019-15691, CVE-2019-15692, CVE-2019-15693, CVE-2019-15694, CVE-2019-15695
SHA-256 | f80f1e718d52160743afe826ffa9c8a4d9183700f91505d41bdbaf883bab9c21
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