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TI-2009-00749 Aliases CVE-2009-0787GHSA-qj8r-wxmp-5mmr

The ecryptfs_write_metadata_to_contents function in the eCryptfs functionality in the…

Priority LOW 23CWE-189Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Complete · None · None
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

The ecryptfs_write_metadata_to_contents function in the eCryptfs functionality in the Linux kernel 2.6.28 before 2.6.28.9 uses an incorrect size when writing kernel memory to an eCryptfs file header, which triggers an out-of-bounds read and allows local users to obtain portions of kernel memory.

Why it matters now

EPSS 0.00389 33rd percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

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 · 9

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:2.6.28:*:*:*:*:*:*:*2.6.28VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.28.1:*:*:*:*:*:*:*2.6.28.1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.28.2:*:*:*:*:*:*:*2.6.28.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.28.3:*:*:*:*:*:*:*2.6.28.3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.28.4:*:*:*:*:*:*:*2.6.28.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.28.5:*:*:*:*:*:*:*2.6.28.5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.28.6:*:*:*:*:*:*:*2.6.28.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.28.7:*:*:*:*:*:*:*2.6.28.7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.28.8:*:*:*:*:*:*:*2.6.28.8VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:2.6.28:*:*:*:*:*:*:* Versions 2.6.28 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.28.1:*:*:*:*:*:*:* Versions 2.6.28.1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.28.2:*:*:*:*:*:*:* Versions 2.6.28.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.28.3:*:*:*:*:*:*:* Versions 2.6.28.3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.28.4:*:*:*:*:*:*:* Versions 2.6.28.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.28.5:*:*:*:*:*:*:* Versions 2.6.28.5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.28.6:*:*:*:*:*:*:* Versions 2.6.28.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.28.7:*:*:*:*:*:*:* Versions 2.6.28.7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.28.8:*:*:*:*:*:*:* Versions 2.6.28.8 Vulnerable ·Linux

Remediation

Red Hat 1 advisory

  • RHSA-2009:0473 Released 2009-05-07 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-128.1.10.el5, kernel-2.6.18-128.1.10.el5.ia64, kernel-PAE-2.6.18-128.1.10.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-128.1.10.el5, kernel-PAE-2.6.18-128.1.10.el5, kernel-PAE-devel-2.6.18-128.1.10.el5 +8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2009:0473
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2009:0473

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-0787
  2. 2026-10-03 Alias added: GHSA-qj8r-wxmp-5mmr

References

Advisory 3

Other 6

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

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