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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.50% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · redhat/enterprise linux
- Source
- secalert@redhat.com
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53b0f08042f04813cd1a7473dacd3edfacb28eb3
- http://kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805Broken Link
- http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.35Broken Link
- http://openwall.com/lists/oss-security/2011/07/12/1Mailing List, Patch, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-1065.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-1163.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=720552Issue Tracking, Patch, Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53b0f08042f04813cd1a7473dacd3edfacb28eb3
- http://kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805Broken Link
- http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.35Broken Link
- http://openwall.com/lists/oss-security/2011/07/12/1Mailing List, Patch, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-1065.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-1163.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=720552Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.