According to its version, the ClamAV clamd antivirus daemon running on the remote host is prior to 0.99.3. It is, therefore, affected by multiple vulnerabilities - one, which expose the system to a DoS attack and another, which provides potential adversaries with Remote Code Execution capabilities.

This update for clamav fixes the following issues :

  - Update to security release 0.99.3 (bsc#1077732)

  - CVE-2017-12376 (ClamAV Buffer Overflow in handle_pdfname     Vulnerability)

  - CVE-2017-12377 (ClamAV Mew Packet Heap Overflow     Vulnerability)

  - CVE-2017-12379 (ClamAV Buffer Overflow in     messageAddArgument Vulnerability)

  - these vulnerabilities could have allowed an     unauthenticated, remote attacker to cause a denial of     service (DoS) condition or potentially execute arbitrary     code on an affected device.

  - CVE-2017-12374 (ClamAV use-after-free Vulnerabilities)

  - CVE-2017-12375 (ClamAV Buffer Overflow Vulnerability)

  - CVE-2017-12378 (ClamAV Buffer Over Read Vulnerability)

  - CVE-2017-12380 (ClamAV Null Dereference Vulnerability)

  - these vulnerabilities could have allowed an     unauthenticated, remote attacker to cause a denial of     service (DoS) condition on an affected device.

  - CVE-2017-6420 (bsc#1052448)

  - this vulnerability could have allowed remote attackers     to cause a denial of service (use-after-free) via a     crafted PE file with WWPack compression.

  - CVE-2017-6419 (bsc#1052449)

  - ClamAV could have allowed remote attackers to cause a     denial of service (heap-based buffer overflow and     application crash) or possibly have unspecified other     impact via a crafted CHM file.

  - CVE-2017-11423 (bsc#1049423)

  - ClamAV could have allowed remote attackers to cause a     denial of service (stack-based buffer over-read and     application crash) via a crafted CAB file.

  - CVE-2017-6418 (bsc#1052466)

  - ClamAV could have allowed remote attackers to cause a     denial of service (out-of-bounds read) via a crafted     e-mail message.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ClamAV project reports :

Join us as we welcome ClamAV 0.99.3 to the family!.

This release is a security release and is recommended for all ClamAV users.

CVE-2017-12374 ClamAV UAF (use-after-free) Vulnerabilities

CVE-2017-12375 ClamAV Buffer Overflow Vulnerability

CVE-2017-12376 ClamAV Buffer Overflow in handle_pdfname Vulnerability

CVE-2017-12377 ClamAV Mew Packet Heap Overflow Vulnerability

CVE-2017-12378 ClamAV Buffer Over Read Vulnerability

CVE-2017-12379 ClamAV Buffer Overflow in messageAddArgument Vulnerability

CVE-2017-12380 ClamAV Null Dereference Vulnerability

Heap-based buffer overflow in mspack/lzxd.c :

mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.(CVE-2017-6419)

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.(CVE-2017-6420)

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause a handle_pdfname (in pdf.c) buffer overflow when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition or potentially execute arbitrary code. (CVE-2017-12376)

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms of .tar (Tape Archive) files sent to an affected device. A successful exploit could cause a checksum buffer over-read condition when ClamAV scans the malicious .tar file, potentially allowing the attacker to cause a DoS condition on the affected device.(CVE-2017-12378)

The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input validation checking mechanisms during certain mail parsing functions (the rfc2047 function in mbox.c). An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. This action could cause a buffer overflow condition when ClamAV scans the malicious email, allowing the attacker to potentially cause a DoS condition on an affected device.(CVE-2017-12375)

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device. The vulnerability is due to improper input validation checking mechanisms in the message parsing function on an affected system. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. This action could cause a messageAddArgument (in message.c) buffer overflow condition when ClamAV scans the malicious email, allowing the attacker to potentially cause a DoS condition or execute arbitrary code on an affected device.(CVE-2017-12379)

libclamav/message.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted e-mail message.(CVE-2017-6418)

The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input validation checking mechanisms during certain mail parsing operations (mbox.c operations on bounce messages). If successfully exploited, the ClamAV software could allow a variable pointing to the mail body which could cause a used after being free (use-after-free) instance which may lead to a disruption of services on an affected device to include a denial of service condition.(CVE-2017-12374)

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device. The vulnerability is due to improper input validation checking mechanisms in mew packet files sent to an affected device. A successful exploit could cause a heap-based buffer over-read condition in mew.c when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition or potentially execute arbitrary code on the affected device.(CVE-2017-12377)

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms in mbox.c during certain mail parsing functions of the ClamAV software. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. An exploit could trigger a NULL pointer dereference condition when ClamAV scans the malicious email, which may result in a DoS condition.(CVE-2017-12380)

ClamAV 0.99.3 =============

This release is a security release and is recommended for all ClamAV users. Please see details below :

1. ClamAV UAF (use-after-free) Vulnerabilities (CVE-2017-12374)

---------------------------------------------------------------

The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability is due to a lack of input validation checking mechanisms during certain mail parsing operations. If successfully exploited, the ClamAV software could allow a variable pointing to the mail body which could cause a used after being free (use-after-free) instance which may lead to a disruption of services on an affected device to include a denial of service condition.

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

  - https://bugzilla.clamav.net/show_bug.cgi?id=11939

2. ClamAV Buffer Overflow Vulnerability (CVE-2017-12375)

--------------------------------------------------------

The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability is due to a lack of input validation checking mechanisms during certain mail parsing functions. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. This action could cause a buffer overflow condition when ClamAV scans the malicious email, allowing the attacker to potentially cause a DoS condition on an affected device.

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

  - https://bugzilla.clamav.net/show_bug.cgi?id=11940

3. ClamAV Buffer Overflow in handle_pdfname Vulnerability (CVE-2017-12376)

----------------------------------------------------------------------
----

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device.

The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause a buffer overflow when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition or potentially execute arbitrary code.

  - https://bugzilla.clamav.net/show_bug.cgi?id=11942

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

4. ClamAV Mew Packet Heap Overflow Vulnerability (CVE-2017-12377)

-----------------------------------------------------------------

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device.

The vulnerability is due to improper input validation checking mechanisms in mew packet files sent to an affected device. A successful exploit could cause a heap overflow condition when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition or potentially execute arbitrary code on the affected device.

  - https://bugzilla.clamav.net/show_bug.cgi?id=11943

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

5. ClamAV Buffer Over Read Vulnerability (CVE-2017-12378)

---------------------------------------------------------

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability is due to improper input validation checking mechanisms of .tar (Tape Archive) files sent to an affected device. A successful exploit could cause a buffer over-read condition when ClamAV scans the malicious .tar file, potentially allowing the attacker to cause a DoS condition on the affected device.

  - https://bugzilla.clamav.net/show_bug.cgi?id=11946

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

6. ClamAV Buffer Overflow in messageAddArgument Vulnerability (CVE-2017-12379)

----------------------------------------------------------------------
--------

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device.

The vulnerability is due to improper input validation checking mechanisms in the message parsing function on an affected system. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. This action could cause a buffer overflow condition when ClamAV scans the malicious email, allowing the attacker to potentially cause a DoS condition or execute arbitrary code on an affected device.

  - https://bugzilla.clamav.net/show_bug.cgi?id=11944

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

7. ClamAV Null Dereference Vulnerability (CVE-2017-12380)

---------------------------------------------------------

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability is due to improper input validation checking mechanisms during certain mail parsing functions of the ClamAV software. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. An exploit could trigger a NULL pointer dereference condition when ClamAV scans the malicious email, which may result in a DoS condition.

  - https://bugzilla.clamav.net/show_bug.cgi?id=11945

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

Further fixes/changes

---------------------

Also included are 2 minor fixes to properly detect openssl install locations on FreeBSD 11, and prevent false warnings about zlib 1.2.1# version numbers.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201801-19 (ClamAV: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in ClamAV. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could cause ClamAV to scan a specially crafted file,       possibly resulting in execution of arbitrary code with the privileges of       the process or cause a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3550-1 advisory.

    It was discovered that ClamAV incorrectly handled parsing certain mail messages. A remote attacker could     use this issue to cause ClamAV to crash, resulting in a denial of service, or possibly execute arbitrary     code. (CVE-2017-12374, CVE-2017-12375, CVE-2017-12379, CVE-2017-12380)

    It was discovered that ClamAV incorrectly handled parsing certain PDF files. A remote attacker could use     this issue to cause ClamAV to crash, resulting in a denial of service, or possibly execute arbitrary code.
    (CVE-2017-12376)

    It was discovered that ClamAV incorrectly handled parsing certain mew packet files. A remote attacker     could use this issue to cause ClamAV to crash, resulting in a denial of service, or possibly execute     arbitrary code. (CVE-2017-12377)

    It was discovered that ClamAV incorrectly handled parsing certain TAR files. A remote attacker could     possibly use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2017-12378)

    In the default installation, attackers would be isolated by the ClamAV AppArmor profile.

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

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

This update for clamav fixes the following issues :

  - Update to security release 0.99.3 (bsc#1077732)

  - CVE-2017-12376 (ClamAV Buffer Overflow in handle_pdfname     Vulnerability)

  - CVE-2017-12377 (ClamAV Mew Packet Heap Overflow     Vulnerability)

  - CVE-2017-12379 (ClamAV Buffer Overflow in     messageAddArgument Vulnerability)

  - these vulnerabilities could have allowed an     unauthenticated, remote attacker to cause a denial of     service (DoS) condition or potentially execute arbitrary     code on an affected device.

  - CVE-2017-12374 (ClamAV use-after-free Vulnerabilities)

  - CVE-2017-12375 (ClamAV Buffer Overflow Vulnerability)

  - CVE-2017-12378 (ClamAV Buffer Over Read Vulnerability)

  - CVE-2017-12380 (ClamAV Null Dereference Vulnerability)

  - these vulnerabilities could have allowed an     unauthenticated, remote attacker to cause a denial of     service (DoS) condition on an affected device.

  - CVE-2017-6420 (bsc#1052448)

  - this vulnerability could have allowed remote attackers     to cause a denial of service (use-after-free) via a     crafted PE file with WWPack compression.

  - CVE-2017-6419 (bsc#1052449)

  - ClamAV could have allowed remote attackers to cause a     denial of service (heap-based buffer overflow and     application crash) or possibly have unspecified other     impact via a crafted CHM file.

  - CVE-2017-11423 (bsc#1049423)

  - ClamAV could have allowed remote attackers to cause a     denial of service (stack-based buffer over-read and     application crash) via a crafted CAB file.

  - CVE-2017-6418 (bsc#1052466)

  - ClamAV could have allowed remote attackers to cause a     denial of service (out-of-bounds read) via a crafted     e-mail message.

  - update upstream keys in the keyring

  - provide and obsolete clamav-nodb to trigger it's removal     in Leap bsc#1040662

This update was imported from the SUSE:SLE-12:Update update project.

This update for clamav fixes the following issues :

  - Update to security release 0.99.3 (bsc#1077732)

  - CVE-2017-12376 (ClamAV Buffer Overflow in handle_pdfname     Vulnerability)

  - CVE-2017-12377 (ClamAV Mew Packet Heap Overflow     Vulnerability)

  - CVE-2017-12379 (ClamAV Buffer Overflow in     messageAddArgument Vulnerability)

  - these vulnerabilities could have allowed an     unauthenticated, remote attacker to cause a denial of     service (DoS) condition or potentially execute arbitrary     code on an affected device.

  - CVE-2017-12374 (ClamAV use-after-free Vulnerabilities)

  - CVE-2017-12375 (ClamAV Buffer Overflow Vulnerability)

  - CVE-2017-12378 (ClamAV Buffer Over Read Vulnerability)

  - CVE-2017-12380 (ClamAV Null Dereference Vulnerability)

  - these vulnerabilities could have allowed an     unauthenticated, remote attacker to cause a denial of     service (DoS) condition on an affected device.

  - CVE-2017-6420 (bsc#1052448)

  - this vulnerability could have allowed remote attackers     to cause a denial of service (use-after-free) via a     crafted PE file with WWPack compression.

  - CVE-2017-6419 (bsc#1052449)

  - ClamAV could have allowed remote attackers to cause a     denial of service (heap-based buffer overflow and     application crash) or possibly have unspecified other     impact via a crafted CHM file.

  - CVE-2017-11423 (bsc#1049423)

  - ClamAV could have allowed remote attackers to cause a     denial of service (stack-based buffer over-read and     application crash) via a crafted CAB file.

  - CVE-2017-6418 (bsc#1052466)

  - ClamAV could have allowed remote attackers to cause a     denial of service (out-of-bounds read) via a crafted     e-mail message.

  - update upstream keys in the keyring

  - provide and obsolete clamav-nodb to trigger it's removal     in Leap bsc#1040662

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Multiple vulnerabilities have been discovered in clamav, the ClamAV AntiVirus toolkit for Unix. Effects range from denial of service to potential arbitrary code execution. Additionally, this version fixes a longstanding issue that has recently resurfaced whereby a malformed virus signature database can cause an application crash and denial of service.

CVE-2017-12374

ClamAV has a use-after-free condition arising from a lack of input validation. A remote attacker could exploit this vulnerability with a crafted email message to cause a denial of service.

CVE-2017-12375

ClamAV has a buffer overflow vulnerability arising from a lack of input validation. An unauthenticated remote attacker could send a crafted email message to the affected device, triggering a buffer overflow and potentially a denial of service when the malicious message is scanned.

CVE-2017-12376

ClamAV has a buffer overflow vulnerability arising from improper input validation when handling Portable Document Format (PDF) files. An unauthenticated remote attacker could send a crafted PDF file to the affected device, triggering a buffer overflow and potentially a denial of service or arbitrary code execution when the malicious file is scanned.

CVE-2017-12377

ClamAV has a heap overflow vulnerability arising from improper input validation when handling mew packets. An attacker could exploit this by sending a crafted message to the affected device, triggering a denial of service or possible arbitrary code execution when the malicious file is scanned.

CVE-2017-12378

ClamAV has a buffer overread vulnerability arising from improper input validation when handling tape archive (TAR) files. An unauthenticated remote attacker could send a crafted TAR file to the affected device, triggering a buffer overread and potentially a denial of service when the malicious file is scanned.

CVE-2017-12379

ClamAV has a buffer overflow vulnerability arising from improper input validation in the message parsing function. An unauthenticated remote attacker could send a crafted email message to the affected device, triggering a buffer overflow and potentially a denial of service or arbitrary code execution when the malicious message is scanned.

CVE-2017-12380

ClamAV has a NULL dereference vulnerability arising from improper input validation in the message parsing function. An unauthenticated remote attacker could send a crafted email message to the affected device, triggering a NULL pointer dereference, which may result in a denial of service.

Debian Bug #824196

A malformed virus signature database could cause an application crash and denial of service.

For Debian 7 'Wheezy', these problems have been fixed in version 0.99.2+dfsg-0+deb7u4.

We recommend that you upgrade your clamav packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
106610	ClamAV < 0.99.3 Multiple libclamav DoS	Nessus	Misc.	2/6/2018	7/6/2018	critical
106455	SUSE SLES11 Security Update : clamav (SUSE-SU-2018:0254-1)	Nessus	SuSE Local Security Checks	1/29/2018	1/19/2021	critical
106427	FreeBSD : clamav -- multiple vulnerabilities (b464f61b-84c7-4e1c-8ad4-6cf9efffd025)	Nessus	FreeBSD Local Security Checks	1/29/2018	11/23/2018	critical
106935	Amazon Linux AMI : clamav (ALAS-2018-958)	Nessus	Amazon Linux Local Security Checks	2/22/2018	7/10/2019	critical
106639	Fedora 26 : clamav (2018-958b22c73f)	Nessus	Fedora Local Security Checks	2/7/2018	1/6/2021	critical
106428	GLSA-201801-19 : ClamAV: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	1/29/2018	6/7/2018	critical
106533	Ubuntu 14.04 LTS / 16.04 LTS : ClamAV vulnerabilities (USN-3550-1)	Nessus	Ubuntu Local Security Checks	1/31/2018	8/27/2024	critical
106431	openSUSE Security Update : clamav (openSUSE-2018-102)	Nessus	SuSE Local Security Checks	1/29/2018	1/19/2021	critical
106456	SUSE SLED12 / SLES12 Security Update : clamav (SUSE-SU-2018:0255-1)	Nessus	SuSE Local Security Checks	1/29/2018	9/10/2019	critical
106465	Fedora 27 : clamav (2018-cb339851e7)	Nessus	Fedora Local Security Checks	1/30/2018	1/6/2021	critical
106411	Debian DLA-1261-1 : clamav security update	Nessus	Debian Local Security Checks	1/29/2018	1/11/2021	critical

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