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TI-2007-00248 Aliases CVE-2007-0257GHSA-fg9q-hp23-pjjp

Unspecified vulnerability in the expand_stack function in grsecurity PaX allows local…

Priority LOW 38Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

Unspecified vulnerability in the expand_stack function in grsecurity PaX allows local users to gain privileges via unspecified vectors. NOTE: the grsecurity developer has disputed this issue, stating that "the function they claim the vulnerability to be in is a trivial function, which can, and has been, easily checked for any supposed vulnerabilities." The developer also cites a past disclosure that was not proven. As of 20070120, the original researcher has released demonstration code

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01021 63rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

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

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:1.9.4:*:*:*:*:*:*:*1.9.4VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.0.1:*:*:*:*:*:*:*2.0.1VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.0.2:*:*:*:*:*:*:*2.0.2VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.0:*:*:*:*:*:*:*2.1.0VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.1:*:*:*:*:*:*:*2.1.1VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.2:*:*:*:*:*:*:*2.1.2VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.3:*:*:*:*:*:*:*2.1.3VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.4:*:*:*:*:*:*:*2.1.4VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.5:*:*:*:*:*:*:*2.1.5VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.6:*:*:*:*:*:*:*2.1.6VulnerableGrsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:1.9.4:*:*:*:*:*:*:* Versions 1.9.4 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.0.2:*:*:*:*:*:*:* Versions 2.0.2 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.0:*:*:*:*:*:*:* Versions 2.1.0 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.2:*:*:*:*:*:*:* Versions 2.1.2 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.3:*:*:*:*:*:*:* Versions 2.1.3 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.4:*:*:*:*:*:*:* Versions 2.1.4 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.5:*:*:*:*:*:*:* Versions 2.1.5 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.6:*:*:*:*:*:*:* Versions 2.1.6 Vulnerable ·Grsecurity
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.7:*:*:*:*:*:*:*2.1.7VulnerableGrsecurity
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.8:*:*:*:*:*:*:*2.1.8VulnerableGrsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.7:*:*:*:*:*:*:* Versions 2.1.7 Vulnerable ·Grsecurity
  • cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.8:*:*:*:*:*:*:* Versions 2.1.8 Vulnerable ·Grsecurity

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2007-0257
  2. 2026-10-03 Alias added: GHSA-fg9q-hp23-pjjp

References

Advisory 3

Other 3

  • TI-2007-00244 Unspecified vulnerability in the grsecurity patch has unspecified impact and remote… CVSS 2.0HIGH 7.2
  • TI-2006-00219 The RBAC functionality in grsecurity before 2.1.8 does not properly handle when the admin… CVSS 2.0HIGH 7.2
  • TI-2002-01745 grsecurity 1.9.4 for Linux kernel 2.4.18 allows local users to bypass read-only… CVSS 2.0MEDIUM 4.6
  • TI-2008-01863 The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not… CVSS 2.0MEDIUM 4.6

Sources

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