4.7

CVE-2012-4565: linux linux_kernel Numeric Errors

Modified
AliasesUBUNTU-CVE-2012-4565DEBIAN-CVE-2012-4565
Published 21-12-2012Last modified 06-08-2024

Vulnerability summary

CVE-2012-4565 is a medium (CVSS 4.7) Numeric Errors vulnerability in linux linux_kernel. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41.9% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.7/10
010
Medium · v2.0 (NVD)
EPSS score
0.49%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2
RHSA-2012:1491RHSA-2012:1580

Timeline

  1. 21-12-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The tcp_illinois_info function in net/ipv4/tcp_illinois.c in the Linux kernel before 3.4.19, when the net.ipv4.tcp_congestion_control illinois setting is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) by reading TCP stats.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.49% 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

1 found
  • githubUnverified

    Linux

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.

Ubuntu12 products
  • linux< 3.11.0-12.19 | < 4.2.0-16.19
  • linux-aws< 4.4.0-1002.2 | < 4.4.0-1001.10
  • linux-gke< 4.4.0-1003.3
  • linux-goldfish< 3.4.0-4.27
  • linux-hwe< 4.8.0-36.36~16.04.1
Debian1 product
  • linux< 3.2.35-1
Linux1 product
  • linux_kernel≤ 3.4.18 | 3.4.1 | 3.4.2 | 3.4.3 | 3.4.4 | 3.4.5 | 3.4.6 | 3.4.7 | 3.4.8 | 3.4.9 | 3.4.10 | 3.4.11 | 3.4.12 | 3.4.13 | 3.4.14 | 3.4.15 | 3.4.16 | 3.4.17

3 vendors · 14 products

References

34 links
Show all 34 references