CVE-2009-1243
MEDIUM
5.5
CVSS Score
Published: April 6, 2009 at 02:00 PM UTC
Updated: June 16, 2026 at 11:06 PM UTC
1 product affected across 1 vendorLinux Kernel
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
Description
net/ipv4/udp.c in the Linux kernel before 2.6.29.1 performs an unlocking step in certain incorrect circumstances, which allows local users to cause a denial of service (panic) by reading zero bytes from the /proc/net/udp file and unspecified other files, related to the "udp seq_file infrastructure."
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.6.29.1
Affected range stops below 2.6.29.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (8)
x_refsource_CONFIRMBroken Link
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=30842f2989aacfaba3ccb39829b3417be9313dbeMailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://openwall.com/lists/oss-security/2009/04/01/4Third Party Advisoryx_refsource_SECUNIABroken Link
Source: [email protected]
http://secunia.com/advisories/34478x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udp-8586x_refsource_CONFIRMBroken Link
Source: [email protected]
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1VDB Entryx_refsource_BIDBroken LinkPatchThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/34329VDB Entryx_refsource_VUPENBroken LinkThird Party Advisory
Source: [email protected]
http://www.vupen.com/english/advisories/2009/0924VDB Entryx_refsource_XFThird Party Advisory
Source: [email protected]
https://exchange.xforce.ibmcloud.com/vulnerabilities/49595CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-667
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