TI-2009-01701 Aliases CVE-2009-1786 GHSA-qx62-xcvw-248x

The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or…

LOW 32CWE-362Published 2009-05-26 · Updated 2024-08-07

Key facts

Attack vector: Local
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Medium
Impact type: —
Confidentiality · integrity · availability: Complete · Complete · Complete
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.

Why it matters now

EPSS 0.00666 52nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:ibm:aix:5.3:::::::*	5.3	Vulnerable	IBM
cpe:2.3:o:ibm:aix:6.1:::::::*	6.1	Vulnerable	IBM

cpe:2.3:o:ibm:aix:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·IBM
cpe:2.3:o:ibm:aix:6.1:*:*:*:*:*:*:* Versions 6.1 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2009-1786
2026-10-03 Alias added: GHSA-qx62-xcvw-248x

References

Exploit 1

9306

Patch 1

http://aix.software.ibm.com/aix/efixes/security/libc_advisory.asc

Advisory 9

Other 2

TI-2001-00767 Buffer overflow in login in various System V based operating systems allows remote… CVSS 2.0HIGH 10.0
TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
TI-2009-03523 Stack-based buffer overflow in libcsa.a (aka the calendar daemon library) in IBM AIX 5.x… CVSS 2.0HIGH 10.0
TI-1999-00045 Buffer overflow of rlogin program using TERM environmental variable. CVSS 2.0HIGH 10.0
TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
TI-1999-00009 Inverse query buffer overflow in BIND 4.9 and BIND 8 Releases. CVSS 2.0HIGH 10.0

See all 544 →

Sources

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