Veracode Vulnerability DatabaseVERACODE:8083Remote Code Execution (RCE)
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.805 High
EPSS
Percentile
98.3%
libvncserver.so is vulnerable to out-of-bounds write. The cause of the vulnerability is the improper memory allocation and handling for length variable in rfbProcessFileTransferReadBuffer function in libvncserver/rfbserver.c.
| CPE | Name | Operator | Version |
|---|---|---|---|
| libvncserver.so | eq | 0.0.0 | |
| libvncserver | eq | 0.9.9__0.12.el7 | |
| libvncserver | eq | 0.9.9__12.el7_5 |
References
access.redhat.com/errata/RHSA-2019:0059
github.com/LibVNC/libvncserver/issues/243
ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-028-libvnc-heap-out-of-bound-write/
lists.debian.org/debian-lts-announce/2018/12/msg00017.html
lists.debian.org/debian-lts-announce/2019/10/msg00042.html
usn.ubuntu.com/3877-1/
usn.ubuntu.com/4547-1/
usn.ubuntu.com/4587-1/
www.debian.org/security/2019/dsa-4383
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.805 High
EPSS
Percentile
98.3%