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CVE
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CVE-2015-8777Date: (C)2016-02-11   (M)2018-09-07


The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6) before 2.23 allows local users to bypass a pointer-guarding protection mechanism via a zero value of the LD_POINTER_GUARD environment variable.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 5.5CVSS Score : 2.1
Exploit Score: 1.8Exploit Score: 3.9
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: NONEAvailability: NONE
Integrity: HIGH 
Availability: NONE 
  
Reference:
SECTRACK-1034811
BID-81469
DSA-3480
FEDORA-2016-0480defc94
GLSA-201702-11
RHSA-2017:1916
SUSE-SU-2016:0470
SUSE-SU-2016:0471
SUSE-SU-2016:0472
SUSE-SU-2016:0473
USN-2985-1
USN-2985-2
http://www.openwall.com/lists/oss-security/2016/01/20/1
http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html
https://sourceware.org/bugzilla/show_bug.cgi?id=18928

CPE    1
cpe:/a:gnu:glibc:2.22
CWE    1
CWE-254
OVAL    10
oval:org.secpod.oval:def:703131
oval:org.secpod.oval:def:703136
oval:org.secpod.oval:def:204676
oval:org.secpod.oval:def:400783
...

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