CVE-2009-1897
- State
- Published
- Severity
- Not scored
- Published
- Jul 20, 2009
- Updated
- Aug 7, 2024
- Reserved
- Jun 2, 2009
Description
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- ADV-2009-1925vdb-entry
- http://isc.sans.org/diary.html?storyid=6820
- http://grsecurity.net/~spender/cheddar_bay.tgz
- [oss-security] 20090717 Linux 2.6.30+/SELinux/RHEL5 test kernel 0day, exploiting the unexploitablemailing-list
- 20090716 Re: Linux 2.6.30+/SELinux/RHEL5 test kernel 0day, exploiting the unexploitablemailing-list
- linux-kernel-tunchrpoll-code-execution(51803)vdb-entry
- [netdev] 20090409 Oops in tun: bisected to Limit amount of queued packets per devicemailing-list
- 35839third-party-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3c8a9c63d5fd738c261bd0ceece04d9c8357ca13
- https://bugzilla.redhat.com/show_bug.cgi?id=512284
- [linux-kernel] 20090706 Re: PROBLEM: tun/tap crashes if open() /dev/net/tun and then poll() it.mailing-list
- 20090716 Linux 2.6.30+/SELinux/RHEL5 test kernel 0day, exploiting the unexploitablemailing-list
- https://www.redhat.com/en/blog/security-flaws-caused-compiler-optimizations
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