CVE-2021-3578

Summary

A flaw was found in mbsync before v1.3.6 and v1.4.2, where an unchecked pointer cast allows a malicious or compromised server to write an arbitrary integer value past the end of a heap-allocated structure by issuing an unexpected APPENDUID response. This could be plausibly exploited for remote code execution on the client.

Affected Software

Weaknesses

• CWE-704: CWE-704

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2021/06/07/1
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/
• https://bugzilla.redhat.com/show_bug.cgi?id=1961710
• https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
• https://bugzilla.redhat.com/show_bug.cgi?id=1967397
• https://www.openwall.com/lists/oss-security/2021/06/07/1
• https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html
• https://security.gentoo.org/glsa/202208-15

References

• http://www.openwall.com/lists/oss-security/2021/06/07/1
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/
• https://bugzilla.redhat.com/show_bug.cgi?id=1961710
• https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
• https://bugzilla.redhat.com/show_bug.cgi?id=1967397
• https://www.openwall.com/lists/oss-security/2021/06/07/1
• https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html
• https://security.gentoo.org/glsa/202208-15

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