20031104 OpenBSD kernel overflow, yet still *BSD much better than windowsmailing list
http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html CVE-2003-0955
OpenBSD - 'ibcs2_exec' Kernel Code Execution
Record summary
CVE-2003-0955 has a selected CVSS score of 4.6; EIP currently links 2 catalogued exploits.
Description
OpenBSD kernel 3.3 and 3.4 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code in 3.4 via a program with an invalid header that is not properly handled by (1) ibcs2_exec.c in the iBCS2 emulation (compat_ibcs2) or (2) exec_elf.c, which leads to a stack-based buffer overflow.
Description source: CVE List
Exploitation context
Available material
- Catalogued exploits
- 2
Proofs of concept
2Catalogued exploits
ExploitDBOpenBSD - 'ibcs2_exec' Kernel Code ExecutionExploitDB exploitby Scott BartramNot analyzed1 file
ExploitDBOpenBSD 2.x < 3.3 - 'exec_ibcs2_coff_prep_zmagic()' kernel stack overflowExploitDB exploitby Sinan ErenNot analyzed1 file
References
7marc.infoConfirmation
http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2 marc.infoConfirmation
http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2 guninski.com
http://www.guninski.com/msuxobsd2.html 20031104 010: RELIABILITY FIX: November 4, 2003Vendor advisory
http://www.openbsd.org/errata33.html 8978vdb entry
http://www.securityfocus.com/bid/8978 nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2003-0955