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Related Vulnerabilities: CVE-2020-3327 CVE-2020-3350 CVE-2020-3481

Fixed 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 resulted in an out-of-bounds read that could cause a crash. The previous fix for this CVE in version 0.102.3 was incomplete. This fix correctly resolves the issue. (CVE-2020-3327) Fixed a vulnerability a malicious user could exploit to replace a scan target directory with a symlink to another path to trick clamscan, clamdscan, or clamonacc into removing or moving a different file (such as a critical system file). The issue would affect users that use the --move or --remove options for clamscan, clamdscan and clamonacc. (CVE-2020-3350) Fixed a vulnerability in the EGG archive module in ClamAV 0.102.0 - 0.102.3 that could cause a denial-of-service (DoS) condition. Improper error handling could cause 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 affected versions. (CVE-2020-3481)

Source

ALAS-2020-1433

Amazon Linux AMI Security Advisory: ALAS-2020-1433
Advisory Release Date: 2020-09-14 20:55 Pacific
Advisory Updated Date: 2020-09-16 18:15 Pacific

Severity: Important

References: CVE-2020-3327 CVE-2020-3350 CVE-2020-3481

Issue Overview:

Fixed 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 resulted in an out-of-bounds read that could cause a crash. The previous fix for this CVE in version 0.102.3 was incomplete. This fix correctly resolves the issue. (CVE-2020-3327)

Fixed a vulnerability a malicious user could exploit to replace a scan target directory with a symlink to another path to trick clamscan, clamdscan, or clamonacc into removing or moving a different file (such as a critical system file). The issue would affect users that use the --move or --remove options for clamscan, clamdscan and clamonacc. (CVE-2020-3350)

Fixed a vulnerability in the EGG archive module in ClamAV 0.102.0 - 0.102.3 that could cause a denial-of-service (DoS) condition. Improper error handling could cause 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 affected versions. (CVE-2020-3481)

Affected Packages:

clamav

Issue Correction:
Run yum update clamav to update your system.

New Packages:

i686:
    clamav-db-0.102.4-1.44.amzn1.i686
    clamav-debuginfo-0.102.4-1.44.amzn1.i686
    clamav-update-0.102.4-1.44.amzn1.i686
    clamd-0.102.4-1.44.amzn1.i686
    clamav-0.102.4-1.44.amzn1.i686
    clamav-lib-0.102.4-1.44.amzn1.i686
    clamav-devel-0.102.4-1.44.amzn1.i686
    clamav-milter-0.102.4-1.44.amzn1.i686

noarch:
    clamav-data-0.102.4-1.44.amzn1.noarch
    clamav-filesystem-0.102.4-1.44.amzn1.noarch

src:
    clamav-0.102.4-1.44.amzn1.src

x86_64:
    clamav-devel-0.102.4-1.44.amzn1.x86_64
    clamav-milter-0.102.4-1.44.amzn1.x86_64
    clamav-debuginfo-0.102.4-1.44.amzn1.x86_64
    clamd-0.102.4-1.44.amzn1.x86_64
    clamav-0.102.4-1.44.amzn1.x86_64
    clamav-lib-0.102.4-1.44.amzn1.x86_64
    clamav-update-0.102.4-1.44.amzn1.x86_64
    clamav-db-0.102.4-1.44.amzn1.x86_64

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ALAS-2020-1433

ALAS-2020-1433

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