CVE-2005-1263

Linux kernel <2.6.12-rc4 - Code Injection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2005-1263. PoCs published by Paul Starzetz.

AI-analyzed exploit summary This exploit leverages a local buffer overflow in the Linux kernel's ELF coredump functionality (CVE-2005-1263) via an integer overflow in 'elf_core_dump()'. It consists of two phases: the first manipulates environment variables to trigger the vulnerability, and the second executes arbitrary code in kernel context for privilege escalation.

Description

The elf_core_dump function in binfmt_elf.c for Linux kernel 2.x.x to 2.2.27-rc2, 2.4.x to 2.4.31-pre1, and 2.6.x to 2.6.12-rc4 allows local users to execute arbitrary code via an ELF binary that, in certain conditions involving the create_elf_tables function, causes a negative length argument to pass a signed integer comparison, leading to a buffer overflow.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Paul Starzetz · bashdoslinux
https://www.exploit-db.com/exploits/25647

This exploit leverages a local buffer overflow in the Linux kernel's ELF coredump functionality (CVE-2005-1263) via an integer overflow in 'elf_core_dump()'. It consists of two phases: the first manipulates environment variables to trigger the vulnerability, and the second executes arbitrary code in kernel context for privilege escalation.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Linux kernel (pre-2.6)
Auth required
Prerequisites: Local access to a vulnerable Linux system · Compilation tools (gcc, ld) · Ability to execute binaries
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (15)

Core 15
Core References
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1122
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2005/0524
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/19185
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/19607
Third Party Advisory, VDB Entry vendor-advisory x_refsource_fedora
http://www.securityfocus.com/archive/1/428058/100/0/threaded
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2005-472.html
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10909
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/13589
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/397966
Third Party Advisory, VDB Entry vendor-advisory x_refsource_fedora
http://www.securityfocus.com/archive/1/428028/100/0/threaded
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2005-551.html
Vendor Advisory vendor-advisory x_refsource_sgi
ftp://patches.sgi.com/support/free/security/advisories/20060402-01-U
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2005-529.html
Third Party Advisory, VDB Entry vendor-advisory x_refsource_fedora
http://www.securityfocus.com/archive/1/427980/100/0/threaded

Scores

EPSS 0.0177
EPSS Percentile 75.3%

Details

Status published
Products (38)
linux/linux_kernel 2.2.0
linux/linux_kernel 2.2.1
linux/linux_kernel 2.2.2
linux/linux_kernel 2.2.3
linux/linux_kernel 2.2.4
linux/linux_kernel 2.2.5
linux/linux_kernel 2.2.6
linux/linux_kernel 2.2.7
linux/linux_kernel 2.2.8
linux/linux_kernel 2.2.9
... and 28 more
Published May 11, 2005
Tracked Since Feb 18, 2026