7.8

CVE-2009-2692: debian debian_linux Use of Uninitialized Resource

Modified
AliasesDSA-1862-1DSA-1864-1
Published 14-08-2009Last modified 07-08-2024

Vulnerability summary

CVE-2009-2692 is a high (CVSS 7.8) Use of Uninitialized Resource vulnerability in debian debian_linux. EPSS estimates a 14.63% chance of exploitation in the next 30 days, higher than 96.6% of scored vulnerabilities. 12 public exploits are recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (exploit-database, 19-07-2012)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
14.63%
0%100%
Medium · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits12reference, exploit-database, metasploit

Advisory lineage

Upstream 0 · Downstream 7 · Duplicates 1

Timeline

  1. 14-08-2009
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

14.63%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

No change 0.00 pp

From 14.63% 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

12 found
  • referenceUnverified

    Exploit Reference (archives.neohapsis.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (blog.cr0.org)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

Show all 12 exploits
  • exploit-databaselocalandroidVerified

    Linux Kernel 2.x (Android) - 'sock_sendpage()' Local Privilege Escalation

    Maturity: weaponized

  • exploit-databaselocallinuxVerified

    Linux Kernel 2.4.4 < 2.4.37.4 / 2.6.0 < 2.6.30.4 - 'Sendpage' Local Privilege Escalation (Metasploit)

    Maturity: weaponized

  • exploit-databaselocallinuxVerified

    Linux Kernel 2.4.x/2.6.x (CentOS 4.8/5.3 / RHEL 4.8/5.3 / SuSE 10 SP2/11 / Ubuntu 8.10) (PPC) - 'sock_sendpage()' Local Privilege Escalation

    Maturity: weaponized

  • exploit-databaselocallinuxVerified

    Linux Kernel 2.4/2.6 (Fedora 11) - 'sock_sendpage()' Local Privilege Escalation (2)

    Maturity: weaponized

  • exploit-databaselocallinuxVerified

    Linux Kernel 2.4/2.6 (RedHat Linux 9 / Fedora Core 4 < 11 / Whitebox 4 / CentOS 4) - 'sock_sendpage()' Ring0 Privilege Escalation (5)

    Maturity: weaponized

  • exploit-databaselocallinuxVerified

    Linux Kernel 2.4/2.6 - 'sock_sendpage()' Local Privilege Escalation (3)

    Maturity: weaponized

  • exploit-databaselocallinuxVerified

    Linux Kernel 2.x (RedHat) - 'sock_sendpage()' Ring0 Privilege Escalation (1)

    Maturity: weaponized

  • exploit-databaselocallinuxVerified

    Linux Kernel 2.x - 'sock_sendpage()' Local Privilege Escalation (4)

    Maturity: weaponized

  • MetasploitMetasploitremoteVerified

    Linux Kernel Sendpage Local Privilege Escalation

    exploit/linux/local/sock_sendpage

    Maturity: weaponized

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.

Redhat5 products
Debian3 products
  • linux-2.6< 2.6.26-17lenny2
  • linux-2.6.24< 2.6.24-6~etchnhalf.8etch3
  • debian_linuxEOL4.0
Linux1 product
Suse1 product

4 vendors · 10 products

References

39 links
Show all 39 references