SUSE SLES12 Security Update : clamav (SUSE-SU-2020:3729-1)

high Nessus Plugin ID 143705
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 6.7

Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for clamav fixes the following issues :

clamav was updated to 0.103.0 to implement jsc#ECO-3010 and bsc#1118459.

clamd can now reload the signature database without blocking scanning.
This multi-threaded database reload improvement was made possible thanks to a community effort.

- Non-blocking database reloads are now the default behavior. Some systems that are more constrained on RAM may need to disable non-blocking reloads as it will temporarily consume two times as much memory. We added a new clamd config option ConcurrentDatabaseReload, which may be set to no.

Fix clamav-milter.service (requires clamd.service to run)

Fix freshclam crash in FIPS mode. (bsc#1119353)

Update to version 0.102.4 :

Accumulated security fixes :

CVE-2020-3350: Fix a vulnerability wherein a malicious user could replace a scan target's directory with a symlink to another path to trick clamscan, clamdscan, or clamonacc into removing or moving a different file (eg. a critical system file). The issue would affect users that use the --move or --remove options for clamscan, clamdscan, and clamonacc. (bsc#1174255)

CVE-2020-3327: Fix a vulnerability in the ARJ archive parsing module in ClamAV 0.102.3 that could cause a Denial-of-Service (DoS) condition. Improper bounds checking results in an out-of-bounds read which could cause a crash. The previous fix for this CVE in 0.102.3 was incomplete. This fix correctly resolves the issue.

CVE-2020-3481: Fix a vulnerability in the EGG archive module in ClamAV 0.102.0 - 0.102.3 could cause a Denial-of-Service (DoS) condition.
Improper error handling may result in a crash due to a NULL pointer dereference. This vulnerability is mitigated for those using the official ClamAV signature databases because the file type signatures in daily.cvd will not enable the EGG archive parser in versions affected by the vulnerability. (bsc#1174250)

CVE-2020-3341: Fix a vulnerability in the PDF parsing module in ClamAV 0.101 - 0.102.2 that could cause a Denial-of-Service (DoS) condition.
Improper size checking of a buffer used to initialize AES decryption routines results in an out-of-bounds read which may cause a crash.
(bsc#1171981)

CVE-2020-3123: A denial-of-service (DoS) condition may occur when using the optional credit card data-loss-prevention (DLP) feature.
Improper bounds checking of an unsigned variable resulted in an out-of-bounds read, which causes a crash.

CVE-2019-15961: A Denial-of-Service (DoS) vulnerability may occur when scanning a specially crafted email file as a result of excessively long scan times. The issue is resolved by implementing several maximums in parsing MIME messages and by optimizing use of memory allocation. (bsc#1157763).

CVE-2019-12900: An out of bounds write in the NSIS bzip2 (bsc#1149458)

CVE-2019-12625: Introduce a configurable time limit to mitigate zip bomb vulnerability completely. Default is 2 minutes, configurable useing the clamscan --max-scantime and for clamd using the MaxScanTime config option (bsc#1144504)

Increase the startup timeout of clamd to 5 minutes to cater for the grown virus database as a workaround until clamd has learned to talk to systemd to extend the timeout as long as needed. (bsc#1151839)

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.

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12-SP5 :

zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-3729=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1118459

https://bugzilla.suse.com/show_bug.cgi?id=1119353

https://bugzilla.suse.com/show_bug.cgi?id=1144504

https://bugzilla.suse.com/show_bug.cgi?id=1149458

https://bugzilla.suse.com/show_bug.cgi?id=1151839

https://bugzilla.suse.com/show_bug.cgi?id=1157763

https://bugzilla.suse.com/show_bug.cgi?id=1171981

https://bugzilla.suse.com/show_bug.cgi?id=1174250

https://bugzilla.suse.com/show_bug.cgi?id=1174255

https://www.suse.com/security/cve/CVE-2019-12625/

https://www.suse.com/security/cve/CVE-2019-12900/

https://www.suse.com/security/cve/CVE-2019-15961/

https://www.suse.com/security/cve/CVE-2020-3123/

https://www.suse.com/security/cve/CVE-2020-3327/

https://www.suse.com/security/cve/CVE-2020-3341/

https://www.suse.com/security/cve/CVE-2020-3350/

https://www.suse.com/security/cve/CVE-2020-3481/

http://www.nessus.org/u?f6f4ad64

Plugin Details

Severity: High

ID: 143705

File Name: suse_SU-2020-3729-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 12/9/2020

Updated: 12/11/2020

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: High

VPR Score: 6.7

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:clamav, p-cpe:/a:novell:suse_linux:clamav-debuginfo, p-cpe:/a:novell:suse_linux:clamav-debugsource, cpe:/o:novell:suse_linux:12

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/9/2020

Vulnerability Publication Date: 6/19/2019

Reference Information

CVE: CVE-2019-12625, CVE-2019-12900, CVE-2019-15961, CVE-2020-3123, CVE-2020-3327, CVE-2020-3341, CVE-2020-3350, CVE-2020-3481