CVE-2019-15681
published 2019-10-29CVE-2019-15681: LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory…
PriorityP343high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
3.35%
87.2th percentile
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
Affected
33 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| david_king | vino | >= 0 < 3.22.0-6 | 3.22.0-6 |
| david_king | vino | >= 0 < 3.22.0-6 | 3.22.0-6 |
| david_king | vino | >= 0 < 3.8.1-0ubuntu9.3 | 3.8.1-0ubuntu9.3 |
| david_king | vino | >= 0 < 3.22.0-3ubuntu1.1 | 3.22.0-3ubuntu1.1 |
| david_king | vino | >= 0 < 3.22.0-5ubuntu2.1 | 3.22.0-5ubuntu2.1 |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | libvncserver | < libvncserver 0.9.12+dfsg-3 (bookworm) | libvncserver 0.9.12+dfsg-3 (bookworm) |
| debian | tightvnc | < libvncserver 0.9.12+dfsg-3 (bookworm) | libvncserver 0.9.12+dfsg-3 (bookworm) |
| debian | vino | < libvncserver 0.9.12+dfsg-3 (bookworm) | libvncserver 0.9.12+dfsg-3 (bookworm) |
| kaspersky | libvnc | — | — |
| libvnc_project | libvncserver | < 0.9.12 | 0.9.12 |
| libvncserver_project | libvncserver | >= 0 < 0.9.12+dfsg-3 | 0.9.12+dfsg-3 |
| libvncserver_project | libvncserver | >= 0 < 0.9.12+dfsg-3 | 0.9.12+dfsg-3 |
| libvncserver_project | libvncserver | >= 0 < 0.9.12+dfsg-3 | 0.9.12+dfsg-3 |
| libvncserver_project | libvncserver | >= 0 < 0.9.12+dfsg-3 | 0.9.12+dfsg-3 |
| libvncserver_project | libvncserver | >= 0 < 0.9.10+dfsg-3ubuntu0.16.04.4 | 0.9.10+dfsg-3ubuntu0.16.04.4 |
| libvncserver_project | libvncserver | >= 0 < 0.9.11+dfsg-1ubuntu1.2 | 0.9.11+dfsg-1ubuntu1.2 |
| libvncserver_project | libvncserver | >= 0 < 0.9.12+dfsg-9ubuntu0.1 | 0.9.12+dfsg-9ubuntu0.1 |
| siemens | simatic_itc1500_firmware | >= 3.0.0.0 < 3.2.1.0 | 3.2.1.0 |
| siemens | simatic_itc1500_pro_firmware | >= 3.0.0.0 < 3.2.1.0 | 3.2.1.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
osv9.8CRITICAL
vendor_ubuntu9.8CRITICAL
vendor_debian7.5LOW
vendor_redhat7.5HIGH
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GHSA
GHSA-gg2p-m82f-fgjg: LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read sta
ghsa_unreviewed·2022-05-24
CVE-2019-15681 [MEDIUM] CWE-665 GHSA-gg2p-m82f-fgjg: LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read sta
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
OSV
italc vulnerabilities
osv·2020-10-20·CVSS 7.5
CVE-2014-6051 [HIGH] italc vulnerabilities
italc vulnerabilities
Nicolas Ruff discovered that iTALC had buffer overflows, divide-by-zero errors
and didn't check malloc return values. A remote attacker could use these issues
to cause a denial of service or possibly execute arbitrary code.
(CVE-2014-6051, CVE-2014-6052, CVE-2014-6053, CVE-2014-6054, CVE-2014-6055)
Josef Gajdusek discovered that iTALC had heap-based buffer overflow
vulnerabilities. A remote attacker could used these issues to cause a denial of
service or possibly execute arbitrary code. (CVE-2016-9941, CVE-2016-9942)
It was discovered that iTALC had an out-of-bounds write, multiple heap
out-of-bounds writes, an infinite loop, improper initializations, and null
pointer vulnerabilities. A remote attacker could used these issues to cause a
denial of service or possibl
OSV
vino vulnerabilities
osv·2020-10-07·CVSS 5.0
CVE-2014-6053 [MEDIUM] vino vulnerabilities
vino vulnerabilities
Nicolas Ruff discovered that Vino incorrectly handled large ClientCutText
messages. A remote attacker could use this issue to cause the server to
crash, resulting in a denial of service. (CVE-2014-6053)
It was discovered that Vino incorrectly handled certain packet lengths. A
remote attacker could possibly use this issue to obtain sensitive
information, cause a denial of service, or execute arbitrary code.
(CVE-2018-7225)
Pavel Cheremushkin discovered that an information disclosure vulnerability
existed in Vino when sending a ServerCutText message. An attacker could
possibly use this issue to expose sensitive information. (CVE-2019-15681)
It was discovered that Vino incorrectly handled region clipping. A remote
attacker could possibly use this issue to cause Vino t
OSV
italc vulnerabilities
osv·2020-09-28·CVSS 9.8
CVE-2019-15681 [CRITICAL] italc vulnerabilities
italc vulnerabilities
It was discovered that an information disclosure vulnerability existed in the
LibVNCServer vendored in iTALC when sending a ServerCutText message. An
attacker could possibly use this issue to expose sensitive information.
(CVE-2019-15681)
It was discovered that the LibVNCServer and LibVNCClient vendored in iTALC
incorrectly handled certain packet lengths. A remote attacker could possibly
use this issue to obtain sensitive information, cause a denial of service, or
execute arbitrary code.
(CVE-2018-15127 CVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022,
CVE-2018-20023, CVE-2018-20024, CVE-2018-20748, CVE-2018-20749, CVE-2018-20750,
CVE-2018-7225, CVE-2019-15681)
OSV
libvncserver vulnerabilities
osv·2020-07-01·CVSS 9.8
CVE-2019-15680 [CRITICAL] libvncserver vulnerabilities
libvncserver vulnerabilities
It was discovered that LibVNCServer incorrectly handled decompressing data. An
attacker could possibly use this issue to cause LibVNCServer to crash,
resulting in a denial of service. (CVE-2019-15680)
It was discovered that an information disclosure vulnerability existed in
LibVNCServer when sending a ServerCutText message. An attacker could possibly
use this issue to expose sensitive information. This issue only affected
Ubuntu 19.10, Ubuntu 18.04 LTS, and Ubuntu 16.04 LTS. (CVE-2019-15681)
It was discovered that LibVNCServer incorrectly handled cursor shape updates.
If a user were tricked in to connecting to a malicious server, an attacker
could possibly use this issue to cause LibVNCServer to crash, resulting in a
denial of service, or possibly execute ar
OSV
CVE-2019-15681: LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read sta
osv·2019-10-29·CVSS 7.5
CVE-2019-15681 [HIGH] CVE-2019-15681: LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read sta
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
CISA ICS
Siemens SIMATIC ITC
cisa_ics·2021-12-16·CVSS 9.8
[CRITICAL] Siemens SIMATIC ITC
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens SIMATIC ITC
Last RevisedDecember 16, 2021
Alert CodeICSA-21-350-12
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SIMATIC ITC Products
- Vulnerabilities: Using Components with Known Vulnerabilities
## 2. RISK EVALUATION
Successful exploitation of these LibVNC vulnerabilities could allow remote code execution, information disclosure, and denial-of-service attacks.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
Siemens reports these vulnerabilities affect the following SIMATIC Industri
Ubuntu
iTALC vulnerabilities
vendor_ubuntu·2020-10-20·CVSS 7.5
CVE-2018-20749 [HIGH] iTALC vulnerabilities
Title: iTALC vulnerabilities
Summary: Several security issues were fixed in iTALC.
Nicolas Ruff discovered that iTALC had buffer overflows, divide-by-zero errors
and didn't check malloc return values. A remote attacker could use these issues
to cause a denial of service or possibly execute arbitrary code.
(CVE-2014-6051, CVE-2014-6052, CVE-2014-6053, CVE-2014-6054, CVE-2014-6055)
Josef Gajdusek discovered that iTALC had heap-based buffer overflow
vulnerabilities. A remote attacker could used these issues to cause a denial of
service or possibly execute arbitrary code. (CVE-2016-9941, CVE-2016-9942)
It was discovered that iTALC had an out-of-bounds write, multiple heap
out-of-bounds writes, an infinite loop, improper initializations, and null
pointer vulnerabilities. A remote attacker c
Ubuntu
Vino vulnerabilities
vendor_ubuntu·2020-10-07·CVSS 5.0
CVE-2014-6053 [MEDIUM] Vino vulnerabilities
Title: Vino vulnerabilities
Summary: Several security issues were fixed in Vino.
Nicolas Ruff discovered that Vino incorrectly handled large ClientCutText
messages. A remote attacker could use this issue to cause the server to
crash, resulting in a denial of service. (CVE-2014-6053)
It was discovered that Vino incorrectly handled certain packet lengths. A
remote attacker could possibly use this issue to obtain sensitive
information, cause a denial of service, or execute arbitrary code.
(CVE-2018-7225)
Pavel Cheremushkin discovered that an information disclosure vulnerability
existed in Vino when sending a ServerCutText message. An attacker could
possibly use this issue to expose sensitive information. (CVE-2019-15681)
It was discovered that Vino incorrectly handled region clipping. A
Ubuntu
iTALC vulnerabilities
vendor_ubuntu·2020-09-28·CVSS 9.8
CVE-2018-15127 [CRITICAL] iTALC vulnerabilities
Title: iTALC vulnerabilities
Summary: Several security issues were fixed in iTALC.
It was discovered that an information disclosure vulnerability existed in the
LibVNCServer vendored in iTALC when sending a ServerCutText message. An
attacker could possibly use this issue to expose sensitive information.
(CVE-2019-15681)
It was discovered that the LibVNCServer and LibVNCClient vendored in iTALC
incorrectly handled certain packet lengths. A remote attacker could possibly
use this issue to obtain sensitive information, cause a denial of service, or
execute arbitrary code.
(CVE-2018-15127 CVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022,
CVE-2018-20023, CVE-2018-20024, CVE-2018-20748, CVE-2018-20749, CVE-2018-20750,
CVE-2018-7225, CVE-2019-15681)
Instructions: In general, a s
Ubuntu
LibVNCServer vulnerabilities
vendor_ubuntu·2020-07-01·CVSS 9.8
CVE-2017-18922 [CRITICAL] LibVNCServer vulnerabilities
Title: LibVNCServer vulnerabilities
Summary: Several security issues were fixed in LibVNCServer.
It was discovered that LibVNCServer incorrectly handled decompressing data. An
attacker could possibly use this issue to cause LibVNCServer to crash,
resulting in a denial of service. (CVE-2019-15680)
It was discovered that an information disclosure vulnerability existed in
LibVNCServer when sending a ServerCutText message. An attacker could possibly
use this issue to expose sensitive information. This issue only affected
Ubuntu 19.10, Ubuntu 18.04 LTS, and Ubuntu 16.04 LTS. (CVE-2019-15681)
It was discovered that LibVNCServer incorrectly handled cursor shape updates.
If a user were tricked in to connecting to a malicious server, an attacker
could possibly use this issue to cause LibVNCServ
Red Hat
libvncserver: information disclosure and ASLR bypass
vendor_redhat·2019-10-30·CVSS 7.5
CVE-2019-15681 [HIGH] CWE-200 libvncserver: information disclosure and ASLR bypass
libvncserver: information disclosure and ASLR bypass
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
Package: libvncserver (Red Hat Enterprise Linux 6) - Out of support scope
Package: vino (Red Hat Enterprise Linux 6) - Out of support scope
Package: libvncserver (Red Hat Enterprise Linux 7) - Fix deferred
Package: vino (Red Hat Enterprise Linux 7) - Fix deferred
Package: libvncserver (Red H
Debian
CVE-2019-15681: libvncserver - LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory ...
vendor_debian·2019·CVSS 7.5
CVE-2019-15681 [HIGH] CVE-2019-15681: libvncserver - LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory ...
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
Scope: local
bookworm: resolved (fixed in 0.9.12+dfsg-3)
bullseye: resolved (fixed in 0.9.12+dfsg-3)
forky: resolved (fixed in 0.9.12+dfsg-3)
sid: resolved (fixed in 0.9.12+dfsg-3)
trixie: resolved (fixed in 0.9.12+dfsg-3)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-15681 libvncserver: information disclosure and ASLR bypass
bugzilla·2020-07-08·CVSS 7.5
CVE-2019-15681 [HIGH] CVE-2019-15681 libvncserver: information disclosure and ASLR bypass
CVE-2019-15681 libvncserver: information disclosure and ASLR bypass
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
References:
https://github.com/LibVNC/libvncserver/commit/d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a
Discussion:
Created libvncserver tracking bugs for this issue:
Affects: epel-7 [bug 1854765]
Affects: fedora-all [bug 1854764]
Bugzilla
CVE-2019-15681 libvncserver: information disclosure and ASLR bypass [fedora-all]
bugzilla·2020-07-08·CVSS 7.5
CVE-2019-15681 [HIGH] CVE-2019-15681 libvncserver: information disclosure and ASLR bypass [fedora-all]
CVE-2019-15681 libvncserver: information disclosure and ASLR bypass [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versi
Bugzilla
CVE-2019-15681 libvncserver: information disclosure and ASLR bypass [epel-7]
bugzilla·2020-07-08·CVSS 7.5
CVE-2019-15681 [HIGH] CVE-2019-15681 libvncserver: information disclosure and ASLR bypass [epel-7]
CVE-2019-15681 libvncserver: information disclosure and ASLR bypass [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-7.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
Discussion:
Use the following template to for the 'fedpk
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00027.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00073.htmlhttps://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfhttps://github.com/LibVNC/libvncserver/commit/d01e1bb4246323ba6fcee3b82ef1faa9b1dac82ahttps://lists.debian.org/debian-lts-announce/2019/10/msg00039.htmlhttps://lists.debian.org/debian-lts-announce/2019/10/msg00042.htmlhttps://lists.debian.org/debian-lts-announce/2019/11/msg00032.htmlhttps://lists.debian.org/debian-lts-announce/2019/12/msg00028.htmlhttps://usn.ubuntu.com/4407-1/https://usn.ubuntu.com/4547-1/https://usn.ubuntu.com/4573-1/https://usn.ubuntu.com/4587-1/http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00027.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00073.htmlhttps://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfhttps://github.com/LibVNC/libvncserver/commit/d01e1bb4246323ba6fcee3b82ef1faa9b1dac82ahttps://lists.debian.org/debian-lts-announce/2019/10/msg00039.htmlhttps://lists.debian.org/debian-lts-announce/2019/10/msg00042.htmlhttps://lists.debian.org/debian-lts-announce/2019/11/msg00032.htmlhttps://lists.debian.org/debian-lts-announce/2019/12/msg00028.htmlhttps://usn.ubuntu.com/4407-1/https://usn.ubuntu.com/4547-1/https://usn.ubuntu.com/4573-1/https://usn.ubuntu.com/4587-1/
2019-10-29
Published