Security update for cosign SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2024:1486-2 Final 1 1 2024-06-18T11:05:34Z current 2024-06-18T11:05:34Z 2024-06-18T11:05:34Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for cosign This update for cosign fixes the following issues: - CVE-2024-29902: Fixed denial of service on host machine via remote image with a malicious attachments (bsc#1222835) - CVE-2024-29903: Fixed denial of service on host machine via malicious software artifacts (bsc#1222837) Other fixes: - Updated to 2.2.4 (jsc#SLE-23879) * Fixes for GHSA-88jx-383q-w4qc and GHSA-95pr-fxf5-86gv (#3661) * ErrNoSignaturesFound should be used when there is no signature attached to an image. (#3526) * fix semgrep issues for dgryski.semgrep-go ruleset (#3541) * Honor creation timestamp for signatures again (#3549) * Features * Adds Support for Fulcio Client Credentials Flow, and Argument to Set Flow Explicitly (#3578) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Container suse/cosign:latest-2024-1486,SUSE-2024-1486,SUSE-SLE-Module-Basesystem-15-SP6-2024-1486,openSUSE-SLE-15.6-2024-1486 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2024/suse-su-20241486-2/ Link for SUSE-SU-2024:1486-2 https://lists.suse.com/pipermail/sle-security-updates/2024-August/019246.html E-Mail link for SUSE-SU-2024:1486-2 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1222835 SUSE Bug 1222835 https://bugzilla.suse.com/1222837 SUSE Bug 1222837 https://www.suse.com/security/cve/CVE-2024-29902/ SUSE CVE CVE-2024-29902 page https://www.suse.com/security/cve/CVE-2024-29903/ SUSE CVE CVE-2024-29903 page Container suse/cosign:latest SUSE Linux Enterprise Module for Basesystem 15 SP6 openSUSE Leap 15.6 cosign-2.2.4-150400.3.20.1 cosign-2.2.4-150400.3.20.1 as a component of Container suse/cosign:latest cosign-2.2.4-150400.3.20.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 cosign-2.2.4-150400.3.20.1 as a component of openSUSE Leap 15.6 Cosign provides code signing and transparency for containers and binaries. Prior to version 2.2.4, a remote image with a malicious attachment can cause denial of service of the host machine running Cosign. This can impact other services on the machine that rely on having memory available such as a Redis database which can result in data loss. It can also impact the availability of other services on the machine that will not be available for the duration of the machine denial. The root cause of this issue is that Cosign reads the attachment from a remote image entirely into memory without checking the size of the attachment first. As such, a large attachment can make Cosign read a large attachment into memory; If the attachments size is larger than the machine has memory available, the machine will be denied of service. The Go runtime will make a SigKill after a few seconds of system-wide denial. This issue can allow a supply-chain escalation from a compromised registry to the Cosign user: If an attacher has compromised a registry or the account of an image vendor, they can include a malicious attachment and hurt the image consumer. Version 2.2.4 contains a patch for the vulnerability. CVE-2024-29902 Container suse/cosign:latest:cosign-2.2.4-150400.3.20.1 SUSE Linux Enterprise Module for Basesystem 15 SP6:cosign-2.2.4-150400.3.20.1 openSUSE Leap 15.6:cosign-2.2.4-150400.3.20.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2024/suse-su-20241486-2/ https://www.suse.com/security/cve/CVE-2024-29902.html CVE-2024-29902 https://bugzilla.suse.com/1222835 SUSE Bug 1222835 Cosign provides code signing and transparency for containers and binaries. Prior to version 2.2.4, maliciously-crafted software artifacts can cause denial of service of the machine running Cosign thereby impacting all services on the machine. The root cause is that Cosign creates slices based on the number of signatures, manifests or attestations in untrusted artifacts. As such, the untrusted artifact can control the amount of memory that Cosign allocates. The exact issue is Cosign allocates excessive memory on the lines that creates a slice of the same length as the manifests. Version 2.2.4 contains a patch for the vulnerability. CVE-2024-29903 Container suse/cosign:latest:cosign-2.2.4-150400.3.20.1 SUSE Linux Enterprise Module for Basesystem 15 SP6:cosign-2.2.4-150400.3.20.1 openSUSE Leap 15.6:cosign-2.2.4-150400.3.20.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2024/suse-su-20241486-2/ https://www.suse.com/security/cve/CVE-2024-29903.html CVE-2024-29903 https://bugzilla.suse.com/1222837 SUSE Bug 1222837