CVE-2011-3021: apple iphone_os Use After Free

Modified

AliasesUBUNTU-CVE-2011-3021

Published 16-02-2012Last modified 06-08-2024

Vulnerability summary

CVE-2011-3021 is a high (CVSS 7.5) Use After Free vulnerability in apple iphone_os. EPSS estimates a 2.00% chance of exploitation in the next 30 days, higher than 80.7% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?

CVSS score

7.5/10

010

High · v2.0 (NVD)

EPSS score

2.00%

0%100%

Low · +0.07 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 2 · Related 2

OPENSUSE-SU-2024:10171-1 OPENSUSE-SU-2024:12948-1

Timeline

16-02-2012
PublishedVulnerability first disclosed.
06-08-2024
Last modifiedVulnerability information updated.

Description

Use-after-free vulnerability in Google Chrome before 17.0.963.56 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to subframe loading.

CVSS metrics

1 score · 1 source · 1 version

v2.07.5

EPSS trend

Probability

2.00%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

Increase +0.07 pp

From 1.93% 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

1 found

referenceUnverified
Exploit Reference (code.google.com)
Maturity: unknown

Weaknesses

CWE · root cause

CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Apple3 products

iphone_os< 6.0
itunes< 10.7
safari< 6.0

Google1 product

chrome< 17.0.963.56

Ubuntu1 product

qtwebkit-sourceAll versions (No fix recorded)

3 vendors · 5 products

References

12 links

support.apple.com/kb/HT5485X Refsource CONFIRMThird Party Advisory
lists.apple.com/archives/security-announce/2012/Sep/msg00003.htmlVendor AdvisoryX Refsource APPLEMailing ListThird Party Advisory
support.apple.com/kb/HT5503X Refsource CONFIRMThird Party Advisory
code.google.com/p/chromium/issues/detail?id=111779X Refsource CONFIRMExploitVendor Advisory
lists.apple.com/archives/security-announce/2012/Sep/msg00001.htmlVendor AdvisoryX Refsource APPLEMailing ListThird Party Advisory
lists.apple.com/archives/security-announce/2012/Jul/msg00000.htmlVendor AdvisoryX Refsource APPLEMailing ListThird Party Advisory
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15020VDB EntrySignatureX Refsource OVALThird Party Advisory
support.apple.com/kb/HT5400X Refsource CONFIRMThird Party Advisory
googlechromereleases.blogspot.com/2012/02/chrome-stable-update.htmlX Refsource CONFIRMVendor Advisory
secunia.com/advisories/48016Third Party AdvisoryX Refsource SECUNIANot Applicable

Show all 12 references

ubuntu.com/security/CVE-2011-3021REPORT
www.cve.org/CVERecord?id=CVE-2011-3021REPORT