4.9

CVE-2011-1023: linux linux_kernel

Modified
Published 21-06-2012Last modified 06-08-2024

Vulnerability summary

CVE-2011-1023 is a medium (CVSS 4.9) vulnerability in linux linux_kernel. EPSS estimates a 0.48% 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 4.9, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.9/10
010
Medium · v2.0 (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 exploits1github

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2011:0542

Timeline

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

Description

The Reliable Datagram Sockets (RDS) subsystem in the Linux kernel before 2.6.38 does not properly handle congestion map updates, which allows local users to cause a denial of service (BUG_ON and system crash) via vectors involving (1) a loopback (aka loop) transmit operation or (2) an InfiniBand (aka ib) transmit operation.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.48% on 05-10-2026

05-10-202604-11-2026

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

No weakness data has been published for this record.

Affected systems

Version check

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

Linux1 product
  • linux_kernel≤ 2.6.37.6 | 2.6.37 | 2.6.37:rc1 | 2.6.37:rc2 | 2.6.37:rc3 | 2.6.37:rc4 | 2.6.37:rc5 | 2.6.37.1 | 2.6.37.2 | 2.6.37.3 | 2.6.37.4 | 2.6.37.5

1 vendor · 1 product

References

5 links