Veracode Vulnerability DatabaseVERACODE:26526Integer Overflow
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
libX11 is vulnerable to integer overflow leading to a double-free was found in libX11. A local privileged attacker could use this flaw to cause an application compiled with libX11 to crash or in some cases result in arbitrary code execution.
References
bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363
github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt
github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh
gitlab.freedesktop.org/xorg/lib/libx11/-/commit/acdaaadcb3d85c61fd43669fc5dddf0f8c3f911d
lists.fedoraproject.org/archives/list/[email protected]/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/
lists.x.org/archives/xorg-announce/2020-August/003056.html
usn.ubuntu.com/4487-2/
Related
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P