CVE-2011-2525
kernel: kernel: net_sched: fix qdisc_notify()
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
La función qdisc_notify de net/sched/sch_api.c del kernel de Linux en versiones anteriores a la 2.6.35 no previene que la función tc_fill_qdisc haga referencia a estructuras Qdisc (CQ_F_BUILTIN) pre-construídas, lo que permite a usuarios locales provocar una denegación de servicio (resolución de puntero NULL y OOPS) o posiblemente tener otros impactos sin especificar a través de una llamada modificada.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2011-06-15 CVE Reserved
- 2011-07-21 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53b0f08042f04813cd1a7473dacd3edfacb28eb3 | X_refsource_confirm | |
| http://kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805 | Broken Link | |
| http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.35 | Broken Link |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://openwall.com/lists/oss-security/2011/07/12/1 | 2023-02-13 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=720552 | 2011-08-16 |
| URL | Date | SRC |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2011-1065.html | 2023-02-13 | |
| http://rhn.redhat.com/errata/RHSA-2011-1163.html | 2023-02-13 | |
| https://access.redhat.com/security/cve/CVE-2011-2525 | 2011-08-16 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 2.6.35 Search vendor "Linux" for product "Linux Kernel" and version " < 2.6.35" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 4.0 Search vendor "Redhat" for product "Enterprise Linux" and version "4.0" | - |
Affected
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