7.8

CVE-2011-2525: linux linux_kernel NULL Pointer Dereference

Modified
AliasesUBUNTU-CVE-2011-2525
Published 02-02-2012Last modified 06-08-2024

Vulnerability summary

CVE-2011-2525 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 41.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.48%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4
DSA-2303-1DSA-2310-1RHSA-2011:1065RHSA-2011:1163

Timeline

  1. 02-02-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.48% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu9 products
  • linux< 3.11.0-12.19
  • linux-flo< 3.4.0-1.3
  • linux-goldfish< 3.4.0-1.9
  • linux-grouper< 3.1.10-8.28
  • linux-lts-utopic< 3.16.0-25.33~14.04.2
Linux1 product
Redhat1 product

3 vendors · 11 products

References

16 links
Show all 16 references