NULL pointer dereference in Linux Kernel
CVE-2011-2525
The qdisc_notify function in net/sched/sch_api.c in the Linux kernel before 2.6.35 does not prevent tc_fill_qdisc function calls referencing builtin (aka CQ_F_BUILTIN) Qdisc structures, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted call.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000
Affected products
- Linux Kernel
- Red Hat Enterprise Linux — versions 4.0
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- rhn.redhat.com/errata/RHSA-2011-1065.html (vendor-advisory, Third Party Advisory)
- kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805 (mailing-list, Broken Link)
- mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.35 (Broken Link)
- rhn.redhat.com/errata/RHSA-2011-1163.html (vendor-advisory, Third Party Advisory)
- openwall.com/lists/oss-security/2011/07/12/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- git.kernel.org/
Frequently asked questions
- What is CVE-2011-2525?
- CVE-2011-2525 is a high-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 7.8/10. Published 2012-02-02.
- How severe is CVE-2011-2525?
- High severity. CVSS v3 base score is 7.8 out of 10.