CVE-2011-1344

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-03-10 · updated 2026-06-16
Weakness: CWE-399

Description

Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.5; iOS before 4.3.2 for iPhone, iPod, and iPad; iOS before 4.2.7 for iPhone 4 (CDMA); and possibly other products allows remote attackers to execute arbitrary code by adding children to a WBR tag and then removing the tag, related to text nodes, as demonstrated by Chaouki Bekrar during a Pwn2Own competition at CanSecWest 2011.

Affected products

Apple Iphone Os: through 4.3.1; through 4.2.5; 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.1.2 (+28)
Apple Safari: through 5.0.4; 1.0, 1.0-beta, 1.0-beta2, 1.0.0, 1.0.0b1, 1.0.0b2 (+65)

References

http://dvlabs.tippingpoint.com/blog/2011/02/02/pwn2own-2011
http://lists.apple.com/archives/security-announce/2011//Apr/msg00000.html
http://lists.apple.com/archives/security-announce/2011//Apr/msg00001.html
http://lists.apple.com/archives/security-announce/2011//Apr/msg00002.html
http://secunia.com/advisories/44151
http://secunia.com/advisories/44154
http://support.apple.com/kb/HT4596
http://support.apple.com/kb/HT4607
http://twitter.com/aaronportnoy/statuses/45632544967901187
http://www.computerworld.com/s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own
http://www.securityfocus.com/archive/1/517505/100/0/threaded
http://www.securityfocus.com/archive/1/517517/100/0/threaded

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