Ubuntu.comUB:CVE-2011-2918CVE-2011-2918
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0005 Low
EPSS
Percentile
15.8%
The Performance Events subsystem in the Linux kernel before 3.1 does not
properly handle event overflows associated with PERF_COUNT_SW_CPU_CLOCK
events, which allows local users to cause a denial of service (system hang)
via a crafted application.
Bugs
Notes
| Author | Note |
|---|---|
| jdstrand | https://lkml.org/lkml/2011/7/27/337 (reproducer) https://lkml.org/lkml/2011/7/28/284 (fix) |
| apw | mainline fix: a8b0ca17b80e92faab46ee7179ba9e99ccb61233 stable fix: 462fee3af72df0de7b60b96c525ffe8baf4db0f0 http://git.kernel.org/?p=linux/kernel/git/stable/linux-3.0.y.git;a=commit;h=462fee3af72df0de7b60b96c525ffe8baf4db0f0 |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 10.04 | noarch | linux | < 2.6.32-34.73 | UNKNOWN |
| ubuntu | 10.10 | noarch | linux | < 2.6.35-30.60 | UNKNOWN |
| ubuntu | 11.04 | noarch | linux | < 2.6.38-11.49 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux-ec2 | < 2.6.32-318.37 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux-fsl-imx51 | < 2.6.31-610.28 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux-lts-backport-maverick | < 2.6.35-30.60~lucid1 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux-lts-backport-natty | < 2.6.38-11.49~lucid1 | UNKNOWN |
| ubuntu | 10.04 | noarch | linux-mvl-dove | < 2.6.32-218.35 | UNKNOWN |
| ubuntu | 10.10 | noarch | linux-mvl-dove | < 2.6.32-418.35 | UNKNOWN |
| ubuntu | 10.10 | noarch | linux-ti-omap4 | < 2.6.35-903.24 | UNKNOWN |
References
www.openwall.com/lists/oss-security/2011/08/15/4
launchpad.net/bugs/cve/CVE-2011-2918
nvd.nist.gov/vuln/detail/CVE-2011-2918
security-tracker.debian.org/tracker/CVE-2011-2918
ubuntu.com/security/notices/USN-1202-1
ubuntu.com/security/notices/USN-1203-1
ubuntu.com/security/notices/USN-1204-1
ubuntu.com/security/notices/USN-1208-1
ubuntu.com/security/notices/USN-1211-1
ubuntu.com/security/notices/USN-1212-1
ubuntu.com/security/notices/USN-1216-1
ubuntu.com/security/notices/USN-1218-1
ubuntu.com/security/notices/USN-1219-1
ubuntu.com/security/notices/USN-1227-1
ubuntu.com/security/notices/USN-1256-1
www.cve.org/CVERecord?id=CVE-2011-2918
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0005 Low
EPSS
Percentile
15.8%