https://bugzilla.suse.com/show_bug.cgi?id=1235156 Bug ID: 1235156 Summary: VUL-0: CVE-2023-49295: dnscrypt-proxy: github.com/quic-go/quic-go: memory exhaustion attack against QUIC's path validation mechanism Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.5 Hardware: Other URL: https://smash.suse.de/issue/390776/ OS: Other Status: NEW Whiteboard: CVSSv3.1:SUSE:CVE-2023-49295:6.5:(AV:N/AC:L/PR:L/UI:N/ S:U/C:N/I:N/A:H) CVSSv4:SUSE:CVE-2023-49295:6.0:(AV:N/AC:L/AT:P/PR:L/UI :N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N) Severity: Normal Priority: P5 - None Component: Security Assignee: cunix@mail.de Reporter: andrea.mattiazzo@suse.com QA Contact: security-team@suse.de Blocks: 1234982 Target Milestone: --- Found By: --- Blocker: --- quic-go is an implementation of the QUIC protocol (RFC 9000, RFC 9001, RFC 9002) in Go. An attacker can cause its peer to run out of memory sending a large number of PATH_CHALLENGE frames. The receiver is supposed to respond to each PATH_CHALLENGE frame with a PATH_RESPONSE frame. The attacker can prevent the receiver from sending out (the vast majority of) these PATH_RESPONSE frames by collapsing the peers congestion window (by selectively acknowledging received packets) and by manipulating the peer's RTT estimate. This vulnerability has been patched in versions 0.37.7, 0.38.2 and 0.39.4. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-49295 https://www.cve.org/CVERecord?id=CVE-2023-49295 https://github.com/quic-go/quic-go/commit/17fc98c2d81dbe685c19702dc694a9d606... https://github.com/quic-go/quic-go/commit/21609ddfeff93668c7625a85eb09f1541f... https://github.com/quic-go/quic-go/commit/3a9c18bcd27a01c551ac9bf8bd2b4bded7... https://github.com/quic-go/quic-go/commit/554d543b50b917369fb1394cc5396d9281... https://github.com/quic-go/quic-go/commit/6cc3d58935426191296171a6c0d1ee965e... https://github.com/quic-go/quic-go/commit/9aaefe19fc3dc8c8917cc87e6128bb56d9... https://github.com/quic-go/quic-go/commit/a0ffa757499913f7be69aa78f573a6aee3... https://github.com/quic-go/quic-go/commit/d7aa627ebde91cf799ada2a07443faa9b1... https://github.com/quic-go/quic-go/security/advisories/GHSA-ppxx-5m9h-6vxf https://bugzilla.redhat.com/show_bug.cgi?id=2257815 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorap... https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorap... -- You are receiving this mail because: You are on the CC list for the bug.