Vulnerability identifier: #VU33688
Vulnerability risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2012-4504
CWE-ID:
CWE-121
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libproxy
Other software /
Other software solutions
Vendor: libproxy
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the url::get_pac function in url.cpp when processing a large proxy.pac file. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
libproxy: 0.4.0 - 0.4.8
External links
https://code.google.com/p/libproxy/source/detail?r=853
https://lists.opensuse.org/opensuse-updates/2012-10/msg00065.html
https://secunia.com/advisories/51048
https://www.openwall.com/lists/oss-security/2012/10/12/1
https://www.openwall.com/lists/oss-security/2012/10/12/5
https://www.openwall.com/lists/oss-security/2012/10/16/3
https://www.securityfocus.com/bid/55909
https://www.ubuntu.com/usn/USN-1629-1
https://bugzilla.redhat.com/show_bug.cgi?id=864417
https://exchange.xforce.ibmcloud.com/vulnerabilities/79249
https://groups.google.com/forum/?fromgroups=#!topic/libproxy/VxZ8No7mT0E
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.