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.

The remote host is affected by the vulnerability described in GLSA-201804-16 (ClamAV: Multiple vulnerabilities)

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

    A remote attacker, through multiple vectors, could execute arbitrary       code, cause a Denial of Service condition, or have other unspecified       impacts.
  Workaround :

    There is no known workaround at this time.

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.

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.

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.

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.

Fixes some regressions of previous versions 

----

Security fixes CVE-2017-6420 (#1483910), CVE-2017-6418 (#1483908)

----

Fixes for rhbz 1530678 and 1518016

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.

Fixes some regressions of previous versions 

----

Security fixes CVE-2017-6420 (#1483910), CVE-2017-6418 (#1483908)

----

  - Fix bugs 1126595,1464269,1126625 and 1258536, 

  - Update of main.cvd, daily.cvd and bytecode.cvd

----

  - Fixes for rhbz 1530678 and 1518016

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.

clamav is vulnerable to multiple issues that can lead to denial of service when processing untrusted content.

CVE-2017-6418

out-of-bounds read in libclamav/message.c, allowing remote attackers to cause a denial of service via a crafted e-mail message.

CVE-2017-6420

use-after-free in the wwunpack function (libclamav/wwunpack.c), allowing remote attackers to cause a denial of service via a crafted PE file with WWPack compression.

For Debian 7 'Wheezy', these problems have been fixed in version 0.99.2+dfsg-0+deb7u3.

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.

It was discovered that ClamAV incorrectly handled parsing certain e-mail messages. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service.
(CVE-2017-6418)

It was discovered that ClamAV incorrectly handled certain malformed CHM files. A remote attacker could use this issue to cause ClamAV to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. In the default installation, attackers would be isolated by the ClamAV AppArmor profile. (CVE-2017-6419)

It was discovered that ClamAV incorrectly handled parsing certain PE files with WWPack compression. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service.
(CVE-2017-6420).

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

ID	Name	Product	Family	Severity
109230	GLSA-201804-16 : ClamAV: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
106935	Amazon Linux AMI : clamav (ALAS-2018-958)	Nessus	Amazon Linux Local Security Checks	critical
106639	Fedora 26 : clamav (2018-958b22c73f)	Nessus	Fedora Local Security Checks	critical
106465	Fedora 27 : clamav (2018-cb339851e7)	Nessus	Fedora Local Security Checks	critical
106456	SUSE SLED12 / SLES12 Security Update : clamav (SUSE-SU-2018:0255-1)	Nessus	SuSE Local Security Checks	critical
106455	SUSE SLES11 Security Update : clamav (SUSE-SU-2018:0254-1)	Nessus	SuSE Local Security Checks	critical
106431	openSUSE Security Update : clamav (openSUSE-2018-102)	Nessus	SuSE Local Security Checks	critical
106421	Fedora 26 : clamav (2018-a86bad9689)	Nessus	Fedora Local Security Checks	medium
106322	Fedora 27 : clamav (2018-2a1f469c85)	Nessus	Fedora Local Security Checks	medium
103427	Debian DLA-1105-1 : clamav security update	Nessus	Debian Local Security Checks	medium
102581	Ubuntu 14.04 LTS / 16.04 LTS : ClamAV vulnerabilities (USN-3393-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2017-6418

medium

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical

medium

medium

medium

high