Read the docs
TI-2015-07224 Aliases CVE-2015-8777GHSA-2gq8-953m-fqr3

The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6)…

Priority LOW 26CWE-254Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 8 fixed, 2 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.0057 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*up to 2.22VulnerableGNU
  • cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* Versions up to 2.22 Vulnerable ·GNU

Remediation

Red Hat 1 advisory

  • RHSA-2017:1916 Released 2017-08-01 · Red Hat rating Moderate
    glibc security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) glibc-2.17-196.el7, glibc-common-2.17-196.el7, glibc-devel-2.17-196.el7 +3
    • Red Hat Enterprise Linux Client Optional (v. 7) glibc-static-2.17-196.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) glibc-2.17-196.el7, glibc-common-2.17-196.el7, glibc-devel-2.17-196.el7 +3
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-static-2.17-196.el7
    • Red Hat Enterprise Linux Server (v. 7) glibc-2.17-196.el7, glibc-2.17-196.el7.ppc, glibc-common-2.17-196.el7 +5
    • Red Hat Enterprise Linux Server Optional (v. 7) glibc-static-2.17-196.el7, glibc-static-2.17-196.el7.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) glibc-2.17-196.el7, glibc-common-2.17-196.el7, glibc-devel-2.17-196.el7 +3
    • Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-static-2.17-196.el7

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:1916
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:1916
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2017:1916
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:1916
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:1916
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:1916
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:1916
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:1916

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-8777
  2. 2026-10-03 Alias added: GHSA-2gq8-953m-fqr3

References

Exploit 1

Advisory 10

Other 2

  • TI-2023-04522 Glibc: buffer overflow in ld.so leading to privilege escalation KEVCVSS 3.1HIGH 7.8
  • TI-2015-00205 Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and… CVSS 2.0HIGH 10.0
  • TI-2026-04772 scanf %mc off-by-one heap buffer overflow CVSS 3.1CRITICAL 9.8
  • TI-2022-07360 The deprecated compatibility function clnt_create in the sunrpc module of the GNU C… CVSS 3.1CRITICAL 9.8
  • TI-2022-07359 The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C… CVSS 3.1CRITICAL 9.8
  • TI-2015-06274 Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the… CVSS 3.0HIGH 8.1
See all 162 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences