Wind River has released a security advisory pertaining to their embedded version of Linux. This advisory contains vulnerabilities that may affect Avaya systems.
Heap-based buffer overflow in the is_gpt_valid function in fs/partitions/efi.c in the Linux kernel 2.6.38 and earlier allows physically proximate attackers to cause a denial of service (OOPS) or possibly have unspecified other impact via a crafted size of the EFI GUID partition-table header on removable media. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2011-1577 to this issue.
The socket implementation in net/core/sock.c in the Linux kernel before 2.6.34 does not properly manage a backlog of received packets, which allows remote attackers to cause a denial of service (memory consumption) by sending a large amount of network traffic, as demonstrated by netperf UDP tests. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-4251 to this issue.
The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-4656 to this issue.
Integer overflow in libsndfile before 1.0.25 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PARIS Audio Format (PAF) file that triggers a heap-based buffer overflow. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2011-2696 to this issue.
The SecureRandom.random_bytes function in lib/securerandom.rb in Ruby before 1.8.7-p352 and 1.9.x before 1.9.2-p290 relies on PID values for initialization, which makes it easier for context-dependent attackers to predict the result string by leveraging knowledge of random strings obtained in an earlier process with the same PID. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2011-2705 to this issue.
More information about these vulnerabilities can be found in the security advisories issued by Wind River:
|Product:||Affected Version(s):||Risk Level:||Actions:|
|Avaya 96x1 IP Deskphones||6.0 thru 6.2.x, 6.3 specifically for H.323 desk phones||Medium||For H.323 desk phones, upgrade to 6.3.1 or later.
For SIP desk phones, upgrade to 6.3 or later.
Recommended Actions for System Products:
Avaya strongly recommends that customers follow networking and security best practices by implementing firewalls, ACLs, physical security or other appropriate access restrictions. Though Avaya believes such restrictions should always be in place, risk to Avaya products and the surrounding network from this potential vulnerability may be mitigated by ensuring these practices are implemented until such time as an Avaya provided product update or the recommended Avaya action is applied. Further restrictions as deemed necessary based on the customer's security policies may be required during this interim period, but customers should not modify the System Product operating system or application unless the change is approved by Avaya. Making changes that are not approved may void the Avaya product service contract.
When determining risk, Avaya takes into account many factors as outlined by Avaya's Security Vulnerability Classification Policy. The following table describes factors that mitigate the risk of specific vulnerabilities for affected Avaya products:
|Rated a Medium due to potential Denial of Service vulnerability.|
|Rated a None since affected packages are not installed.|
Additional information may also be available via the Avaya support website and through your Avaya account representative. Please contact your Avaya product support representative, or dial 1-800-242-2121, with any questions.
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V 1.0 - October 25, 2011 - Initial Statement issued.
V 2.0 - February 6, 2014 - Updated 96x1 affected versions and actions and Advisory status to Final.
Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or firstname.lastname@example.org.
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