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CVE-2015-3331

9.3 · HIGH

The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows…

Published May 27, 2015linuxCWE-119EPSS 10.03%

Overview

CVE-2015-3331 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 27, 2015 and has a CVSS 2.0 base score of 9.3 (HIGH).

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows context-dependent attackers to cause a denial of service (buffer overflow and system crash) or possibly execute arbitrary code by triggering a crypto API call, as demonstrated by use of a libkcapi test program with an AF_ALG(aead) socket.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel>= 0, < 3.2.69Affected

References

Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ccfe8c3f7e52ae83155cb038753f4c75b774ca8aReflists.opensuse.org/opensuse-security-announce/2015-09/msg00004.htmlReflists.opensuse.org/opensuse-security-announce/2015-09/msg00007.htmlReflists.opensuse.org/opensuse-security-announce/2015-09/msg00008.htmlReflists.opensuse.org/opensuse-security-announce/2015-09/msg00009.htmlReflists.opensuse.org/opensuse-security-announce/2015-09/msg00011.htmlRefrhn.redhat.com/errata/RHSA-2015-1081.htmlRefrhn.redhat.com/errata/RHSA-2015-1199.htmlRefwww.debian.org/security/2015/dsa-3237Refwww.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3

How CyberStrike helps

Frequently asked questions

What is CVE-2015-3331?

CVE-2015-3331 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 27, 2015 and has a CVSS 2.0 base score of 9.3 (HIGH).

How severe is CVE-2015-3331?

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-3331?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2015-3331?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-3331 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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