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CVE
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CVE-2017-18269Date: (C)2018-05-22   (M)2024-03-25


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 9.8CVSS Score : 7.5
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 5.9Impact Score: 6.4
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: HIGHAvailability: PARTIAL
Integrity: HIGH 
Availability: HIGH 
  
Reference:
USN-4416-1
https://github.com/fingolfin/memmove-bug
https://security.netapp.com/advisory/ntap-20190329-0001/
https://security.netapp.com/advisory/ntap-20190401-0001/
https://sourceware.org/bugzilla/show_bug.cgi?id=22644
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=cd66c0e584c6d692bc8347b5e72723d02b8a8ada

CPE    2
cpe:/o:linux:linux_kernel:-
cpe:/a:gnu:glibc
CWE    1
CWE-119
OVAL    7
oval:org.secpod.oval:def:89002186
oval:org.secpod.oval:def:89043999
oval:org.secpod.oval:def:115085
oval:org.secpod.oval:def:89049753
...

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