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Medium severity · published Jan 20, 2016
CVE-2015-8777
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…
5.5
CVSS
0.6%
EPSS
No
On KEV
Description
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 vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GL
Glibc · Gnu
through 2.22 · source: NVD
Affected product
GL
Glibc
Gnu
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-8777
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-8777
Exploit
http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
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