Overview
- Description
- The do_coredump function in fs/exec.c in the Linux kernel 2.6.19 sets the flag variable to O_EXCL but does not use it, which allows context-dependent attackers to modify arbitrary files via a rewrite attack during a core dump.
- Source
- cve@mitre.org
- NVD status
- Modified
Risk scores
CVSS 2.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 6.4
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-399
Social media
- Hype score
- Not currently trending
Vendor comments
- Red HatThis issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and Red Hat Enterprise MRG. Shipped kernels do not include upstream commit d025c9db that introduced the problem. This upstream commit was backported in Red Hat Enterprise Linux 5 via RHSA-2009:0225. It was later reported and addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0046.html
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.19:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "179147E4-5247-451D-9409-545D661BC158"
}
],
"operator": "OR"
}
]
}
]