CVE-2021-27506
published 2021-03-19CVE-2021-27506: The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png…
PriorityP423medium5.5CVSS 3.1
AVLACLPRNUIRSUCNINAH
EPSS
1.31%
67.1th percentile
The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| clamav | clamav | <= 0.103.1 | — |
| msrc | clamav-0.103.2-1.cm1.aarch64.rpm_on_cbl_mariner_1.0_arm | — | — |
| msrc | clamav-0.103.2-1.cm1.x86_64.rpm_on_cbl_mariner_1.0_x64 | — | — |
| msrc | clamav-debuginfo-0.103.2-1.cm1.aarch64.rpm_on_cbl_mariner_1.0_arm | — | — |
| msrc | clamav-debuginfo-0.103.2-1.cm1.x86_64.rpm_on_cbl_mariner_1.0_x64 | — | — |
| netasq_project | netasq | 9.1.0 – 9.1.11 | — |
| stormshield | stormshield_network_security | 1.0 – 4.2.0 | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
vendor_msrc5.5MEDIUM
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Microsoft
The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 t
vendor_msrc·2021-03-09·CVSS 5.5
CVE-2021-27506 [MEDIUM] The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 t
The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19 3.11.7 and 4.2.1.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog
GHSA
GHSA-rfvf-cm38-cvx4: In Stormshield Network Security (SNS) 1
ghsa_unreviewed·2022-05-24
CVE-2021-27506 [MEDIUM] GHSA-rfvf-cm38-cvx4: In Stormshield Network Security (SNS) 1
In Stormshield Network Security (SNS) 1.0 through 4.2.0, the parsing of some malformed files can lead to the crash of ClamAV service causing a Denial of Service.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-03-19
Published