7.5 High
CVSS2
Attack Vector
NETWORK
Attack 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
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
0.006 Low
EPSS
Percentile
79.1%
An SSE2-optimized memmove implementation for i386 in
sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library
(aka glibc or libc6) 2.21 through 2.27 does not correctly perform the
overlapping memory check if the source memory range spans the middle of the
address space, resulting in corrupt data being produced by the copy
operation. This may disclose information to context-dependent attackers, or
result in a denial of service, or, possibly, code execution.
Author | Note |
---|---|
sbeattie | introduced in glibc 2.21 |
7.5 High
CVSS2
Attack Vector
NETWORK
Attack 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
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
0.006 Low
EPSS
Percentile
79.1%