Microsoft Starts 2022 with 97 CVEs in January Patch Tuesday

When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got *before* the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-through the TLS traffic from the legitimate server and trick curl into sending data back to the user thinking the attacker's injected data comes from the TLS-protected server.

libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).

Windows Security Center API Remote Code Execution Vulnerability

The Windows User Profile Service contains a link-following flaw (CWE-59) that lets an authenticated local attacker with low privileges elevate to SYSTEM/administrator rights, typically by planting a junction or symlink that the service follows while handling user profile operations. The attack is local-only (AV:L) with high attack complexity and no user interaction required, so it cannot be exploited remotely or by unauthenticated users. Any environment running the affected Windows releases — Windows 7, 8.1, RT 8.1, Windows 10 versions 1507 through 21H2, Windows 11 21H2, and Windows Server 2008 per the CPE data — is exposed wherever standard users can execute code. Microsoft shipped the fix in its January 2022 Patch Tuesday release, and CISA added the CVE to the Known Exploited Vulnerabilities catalog on 2022-04-25, confirming exploitation in the wild. Ransomware association is not documented, and no public proof-of-concept is known; EPSS currently puts 30-day exploitation probability at 3.0% (86th percentile).

Do: Apply Microsoft's January 2022 Patch Tuesday security updates (or any later cumulative/LC updates) to all affected Windows 7/8.1/10/11 clients, Windows RT 8.1 devices, and Windows Server 2008 systems, per CISA's required action. Windows 7/8.1/Server 2008 may require Extended Security Updates where mainstream support has ended. Prioritize hosts that expose interactive logon to untrusted or low-privilege users and verify patch compliance, given the KEV listing confirms active exploitation.