CVE-2011-2492: linux linux_kernel
Vulnerability summary
CVE-2011-2492 is a low (CVSS 1.9) vulnerability in linux linux_kernel. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 29.1% of scored vulnerabilities.
Not severe (CVSS 1.9, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5Timeline
- 28-07-2011PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The bluetooth subsystem in the Linux kernel before 3.0-rc4 does not properly initialize certain data structures, which allows local users to obtain potentially sensitive information from kernel memory via a crafted getsockopt system call, related to (1) the l2cap_sock_getsockopt_old function in net/bluetooth/l2cap_sock.c and (2) the rfcomm_sock_getsockopt_old function in net/bluetooth/rfcomm/sock.c.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.35%
Chance of exploitation in the next 30 days
Percentile
29%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.35% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu7 products
- linux< 3.11.0-12.19
- linux-flo< 3.4.0-1.3
- linux-goldfish< 3.4.0-1.7
- linux-grouper< 3.1.10-8.28
- linux-maguro< 3.0.0-3.18
Redhat5 products
Linux1 product
- linux_kernel< 3.0 | 3.0 | 3.0:rc1 | 3.0:rc2 | 3.0:rc3
3 vendors · 13 products
References
23 links- git.kernel.orgX Refsource CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=703019X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2011/06/24/3Mailing ListX Refsource MLISTPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2011/06/24/2Mailing ListX Refsource MLISTPatchThird Party Advisory