CVE-2003-0955

Public Exploit

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.

4.6

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 0.50%

Vendor Advisory openbsd.org Vendor Advisory openbsd.org Vendor Advisory guninski.com

Affected: n/a n/a

References

Link	Tags
http://www.openbsd.org/errata33.html	vendor advisory
http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2
http://www.securityfocus.com/bid/8978	vdb entry
http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html	mailing list
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/005_exec.patch	patch vendor advisory
http://www.guninski.com/msuxobsd2.html	exploit vendor advisory

Frequently Asked Questions

What is the severity of CVE-2003-0955?: CVE-2003-0955 has been scored as a medium severity vulnerability.
How to fix CVE-2003-0955?: To fix CVE-2003-0955, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2003-0955 being actively exploited in the wild?: It is possible that CVE-2003-0955 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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