CVE-2011-0521: linux linux_kernel

Modified

Published 02-02-2011Last modified 06-08-2024

Vulnerability summary

CVE-2011-0521 is a high (CVSS 7.2) vulnerability in linux linux_kernel. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 34.7% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7.2, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.2/10

010

High · v2.0 (NVD)

EPSS score

0.40%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5

DSA-2153-1 RHSA-2011:0263 RHSA-2011:0330 RHSA-2011:0421 RHSA-2011:0429

Timeline

02-02-2011
PublishedVulnerability first disclosed.
06-08-2024
Last modifiedVulnerability information updated.

Description

The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel before 2.6.38-rc2 does not check the sign of a certain integer field, which allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.

CVSS metrics

1 score · 1 source · 1 version

v2.07.2

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.40% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.

Affected systems

Version check

Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.

Linux1 product

linux_kernel< 2.6.38 | 2.6.38 | 2.6.38:rc1

1 vendor · 1 product

References

11 links

www.securityfocus.com/bid/45986VDB EntryX Refsource BIDThird Party Advisory
www.securitytracker.com/id?1025195VDB EntryX Refsource SECTRACKThird Party Advisory
openwall.com/lists/oss-security/2011/01/24/2Mailing ListX Refsource MLISTPatchThird Party Advisory
www.securityfocus.com/archive/1/520102/100/0/threadedMailing ListX Refsource BUGTRAQThird Party AdvisoryVDB Entry
secunia.com/advisories/46397Third Party AdvisoryX Refsource SECUNIA
exchange.xforce.ibmcloud.com/vulnerabilities/64988VDB EntryX Refsource XFThird Party Advisory
secunia.com/advisories/43009Third Party AdvisoryX Refsource SECUNIA
www.vmware.com/security/advisories/VMSA-2011-0012.htmlX Refsource CONFIRMThird Party Advisory
www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.38-rc2X Refsource CONFIRMBroken Link
openwall.com/lists/oss-security/2011/01/25/2Mailing ListX Refsource MLISTPatchThird Party Advisory

Show all 11 references

git.kernel.orgX Refsource CONFIRM