All vulnerabilities

Servers and applications

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 value of the LD_POINTER_GUARD environment variable.

Severity
Medium 5.5
Published
20 Jan 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.6% in the next 30 daysHigher than 47% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
CWE-254
Attack
Needs local access · Needs a user account · No user action needed
Attacker can
Change data
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Sources
NVD

Affected software

SoftwareAffected versions
GNU C LibraryServers and applications · cpe:a:gnu:glibc
  • Every version up to 2.22

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-8777
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-8777