fkie_cve-2009-1897
Vulnerability from fkie_nvd
Published
2009-07-20 17:30
Modified
2025-04-09 00:30
Severity ?
Summary
The tun_chr_poll function in drivers/net/tun.c in the tun subsystem in the Linux kernel 2.6.30 and 2.6.30.1, when the -fno-delete-null-pointer-checks gcc option is omitted, allows local users to gain privileges via vectors involving a NULL pointer dereference and an mmap of /dev/net/tun, a different vulnerability than CVE-2009-1894.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | 2.6.30 | |
| linux | linux_kernel | 2.6.30 | |
| linux | linux_kernel | 2.6.30 | |
| linux | linux_kernel | 2.6.30 | |
| linux | linux_kernel | 2.6.30 | |
| linux | linux_kernel | 2.6.30 | |
| linux | linux_kernel | 2.6.30 | |
| linux | linux_kernel | 2.6.30 | |
| linux | linux_kernel | 2.6.30.1 |
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"lastModified": "2025-04-09T00:30:58.490",
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"comment": "Red Hat is aware of this issue and is tracking it via the following bug:\nhttps://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2009-1897\n\nThe flaw only affects the Red Hat Enterprise Linux 5.4 beta kernel, which includes a backport of the upstream bug fix introducing this flaw (git commit 33dccbb0). This issue did not affect the final released Red Hat Enterprise Linux 5.4 kernel. It is also possible to mitigate this flaw by ensuring that the permissions for /dev/net/tun is restricted to root only.\n\nThis issue does not affect any other released kernel in any Red Hat product.",
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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