Buffer overflow in Linux Kernel
CVE-2009-1897
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.
Vulnerability class: Buffer Overflow
EPSS: 0.015 (72.0th percentile) — read the EPSS interpretation.
Affected products
- Linux Linux_kernel — versions 2.6.30, 2.6.30.1
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, vdb-entry, x_refsource_VUPEN, Vendor Advisory)
- secalert@redhat.com (Exploit, x_refsource_MISC)
- secalert@redhat.com (Patch, x_refsource_MISC)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (mailing-list, x_refsource_FULLDISC)
- secalert@redhat.com (vdb-entry, x_refsource_XF)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2009-1897?
- CVE-2009-1897 is a vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2009-07-20.
- Is CVE-2009-1897 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.