MEDIUM
CVE-2009-2848
CWE-269Published: August 18, 2009· Updated: Jun 16, 2026
5.9
CVSS v3.1
Official Description
The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current->clear_child_tid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled, which is not properly handled during thread creation and exit.
Technical Analysis
CVE-2009-2848 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityP
AvailabilityC
AV:L/AC:M/Au:N/C:P/I:P/A:C
Affected Vendors & Products
Canonical1 product(s)
ubuntu linux
Fedora1 product(s)
fedora
Linux1 product(s)
linux kernel
novell1 product(s)
linux desktop
openSUSE1 product(s)
opensuse
Red Hat4 product(s)
enterprise linux desktopenterprise linux serverenterprise linux workstationenterprise linux
SUSE2 product(s)
linux enterprise desktoplinux enterprise server
VMware2 product(s)
esxvma
Source: NVD CPE · 21 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (52)
→
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.htmlMailing List · Third Party Advisory
→
http://rhn.redhat.com/errata/RHSA-2009-1243.htmlThird Party Advisory
→
http://secunia.com/advisories/35983Broken Link
→
http://secunia.com/advisories/36501Broken Link
→
http://secunia.com/advisories/36562Broken Link
→
http://secunia.com/advisories/36759Broken Link
→
http://secunia.com/advisories/37105Broken Link
→
http://secunia.com/advisories/37351Broken Link
→
http://secunia.com/advisories/37471Broken Link
→
http://www.openwall.com/lists/oss-security/2009/08/04/2Exploit · Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2009/08/05/10Exploit · Mailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2009-2848
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-269
CISA KEVNo
Affected8 vendor(s)
PublishedAug 18, 2009
Related CVEs (CWE-269)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2009-2848 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.