1.9

CVE-2012-3520: linux linux_kernel Improper Authentication

Modified
AliasesUBUNTU-CVE-2012-3520DEBIAN-CVE-2012-3520
Published 03-10-2012Last modified 06-08-2024

Vulnerability summary

CVE-2012-3520 is a low (CVSS 1.9) Improper Authentication vulnerability in linux linux_kernel. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 37.1% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 1.9, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
1.9/10
010
Low · v2.0 (NVD)
EPSS score
0.43%
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 · Related 1
OPENSUSE-SU-2024:10128-1RHSA-2012:1491

Timeline

  1. 03-10-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The Netlink implementation in the Linux kernel before 3.2.30 does not properly handle messages that lack SCM_CREDENTIALS data, which might allow local users to spoof Netlink communication via a crafted message, as demonstrated by a message to (1) Avahi or (2) NetworkManager.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.43% 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.

Ubuntu13 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-flo< 3.4.0-1.3 | < 3.4.0-5.22
  • linux-gke< 4.4.0-1003.3
  • linux-goldfish< 3.4.0-4.27
Debian1 product
  • linux< 3.2.29-1
Linux1 product
  • linux_kernel≤ 3.2.29 | 2.3.2 | 2.3.20 | 2.3.21 | 2.3.22 | 2.3.23 | 2.3.24 | 2.3.25 | 2.3.26 | 2.3.27 | 2.3.28 | 2.3.29 | 2.4.33.2 | 2.6.13.2 | 2.6.23.2 | 2.6.33.2 | 2.6.33.20 | 3.2 | 3.2:rc2 | 3.2:rc3 | 3.2:rc4 | 3.2:rc5 | 3.2:rc6 | 3.2:rc7 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.5 | 3.2.6 | 3.2.7 | 3.2.8 | 3.2.9 | 3.2.10 | 3.2.11 | 3.2.12 | 3.2.13 | 3.2.14 | 3.2.15 | 3.2.16 | 3.2.17 | 3.2.18 | 3.2.19 | 3.2.20 | 3.2.21 | 3.2.22 | 3.2.23 | 3.2.24 | 3.2.25 | 3.2.26 | 3.2.27 | 3.2.28 | 3.3.2

3 vendors · 15 products

References

17 links
Show all 17 references