Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001003)

medium Nessus Plugin ID 290452

Synopsis

The Unity Linux host is missing one or more security updates.

Description

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001003 advisory.

The packet_recvmsg function in net/packet/af_packet.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

http://www.nessus.org/u?eae9466b

http://www.nessus.org/u?1af38415

http://secunia.com/advisories/55882

http://secunia.com/advisories/56036

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.4

http://www.openwall.com/lists/oss-security/2013/12/31/7

http://www.securityfocus.com/bid/64744

http://www.ubuntu.com/usn/USN-2109-1

http://www.ubuntu.com/usn/USN-2110-1

http://www.ubuntu.com/usn/USN-2113-1

http://www.ubuntu.com/usn/USN-2117-1

http://www.ubuntu.com/usn/USN-2128-1

http://www.ubuntu.com/usn/USN-2129-1

http://www.ubuntu.com/usn/USN-2135-1

http://www.ubuntu.com/usn/USN-2136-1

http://www.ubuntu.com/usn/USN-2138-1

http://www.ubuntu.com/usn/USN-2139-1

http://www.ubuntu.com/usn/USN-2141-1

https://bugzilla.redhat.com/show_bug.cgi?id=1039845

https://exchange.xforce.ibmcloud.com/vulnerabilities/90131

http://www.nessus.org/u?b180ae9c

https://security-tracker.debian.org/tracker/CVE-2013-7270

Plugin Details

Severity: Medium

ID: 290452

File Name: unity_linux_UTSA-2026-001003.nasl

Version: 1.1

Type: local

Published: 1/16/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2013-7270

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 1/14/2026

Vulnerability Publication Date: 1/6/2014

Reference Information

CVE: CVE-2013-7270