CVE-2013-3231
Kernel: llc: Fix missing msg_namelen update in llc_ui_recvmsg
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
The llc_ui_recvmsg function in net/llc/af_llc.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.
La función llc_ui_recvmsg en net/llc/af_llc.c en el kernel de Linux anterior a v3.9-rc7 no inicializa correctamente cierta longitud de variable, permitiendo a usuarios locales obtener información sensible desde la pila del kernel mediante una syscall recvmsg o recvfrom.
Security fixes: It was found that the kernel-rt update RHBA-2012:0044 introduced an integer conversion issue in the Linux kernel's Performance Events implementation. This led to a user-supplied index into the perf_swevent_enabled array not being validated properly, resulting in out-of-bounds kernel memory access. A local, unprivileged user could use this flaw to escalate their privileges. A public exploit for CVE-2013-2094 that affects Red Hat Enterprise MRG 2 is available. Refer to Red Hat Knowledge Solution 373743, linked to in the References, for further information and mitigation instructions for users who are unable to immediately apply this update.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2013-04-21 CVE Reserved
- 2013-04-22 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c77a4b9cffb6215a15196ec499490d116dfad181 | X_refsource_confirm | |
| http://www.openwall.com/lists/oss-security/2013/04/14/3 | Mailing List |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | <= 3.9 Search vendor "Linux" for product "Linux Kernel" and version " <= 3.9" | rc6 |
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 3.9 Search vendor "Linux" for product "Linux Kernel" and version "3.9" | rc1 |
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 3.9 Search vendor "Linux" for product "Linux Kernel" and version "3.9" | rc2 |
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 3.9 Search vendor "Linux" for product "Linux Kernel" and version "3.9" | rc3 |
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 3.9 Search vendor "Linux" for product "Linux Kernel" and version "3.9" | rc4 |
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 3.9 Search vendor "Linux" for product "Linux Kernel" and version "3.9" | rc5 |
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