-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-2786-1 debian-...@lists.debian.org https://www.debian.org/lts/security/ Anton Gladky October 16, 2021 https://wiki.debian.org/LTS - -------------------------------------------------------------------------
Package : nghttp2 Version : 1.18.1-1+deb9u2 CVE ID : CVE-2018-1000168 CVE-2020-11080 Two security issue have been discovered in nghttp2: server, proxy and client implementing HTTP/2. CVE-2018-1000168 An Improper Input Validation CWE-20 vulnerability found in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. CVE-2020-11080 The overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. For Debian 9 stretch, these problems have been fixed in version 1.18.1-1+deb9u2. We recommend that you upgrade your nghttp2 packages. For the detailed security status of nghttp2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/nghttp2 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEu71F6oGKuG/2fnKF0+Fzg8+n/wYFAmFrvI8ACgkQ0+Fzg8+n /wakFA//cHXBrc2jiJ6comMoArM7BnSE0/DxbrY5FsdoN1NWEbTKcsK+cDuW9bBk roCrah3Nwzw3lnjlsWiR0PVqklyYWEBYdq6TEs1h+cp8XIpxFGuRQcbieZFqrGXB 09H4yFBlbpgeu3KyHtLfuuqJSklJg4GVvI4iCd4+ruu1avYnSk5HFtji9SLjx9vX zcM66+yll1ZKD64C2wAwzSeYvDntU5DGO3rwQ6LC2R8SDka7tudh5YBqP+I7tZeQ aNqYJ0WctVdPoEe2IHZMAYZQsfKU2OkJW9E/fHK/E3ghDAscDYWWGOyEn4o0sp3c FzHkzXLq+KRSD62EFBu5KKCZQ9wlfQ6ckGf6kuWRQIJnpAAgPRYsor3h8vDvEm9B CHidp75FAPkX2vCbFzTlIKl5NDr9ilZlT6mHzZKtfbFNn300a6wTFOqrWwah2xyE 7VY1YX3v8jRMYoY6V4K62f0PMKmj00vt/huscugH6sur21VF/8DXWY/oPMAPbuj7 B0V5IAf3xLWNivD+cML3zPTwE5LBnIf/SCenijPLpwolf0tGhtKtDEsfj8yZTXsZ U4VDksNKNckLgy/bWl4pRPb/wGxax4e/DgUCWRljjGxIPrfuoY6Wtr9q29ONEoMp 82QMVZAUemFkCJ6eGqs2s+oaCII4/R86L00yPBljMbPf32YDaf4= =vAXg -----END PGP SIGNATURE-----