An attacker with command execution in the shell can use "enable -f" for runtime loading of a new builtin, which can be a shared object that calls setuid() and therefore regains privileges. On Linux and other systems that support "saved UID" functionality, the saved UID is not dropped. By default, if Bash is run with its effective UID not equal to its real UID, it will drop privileges by setting its effective UID to its real UID. See How to fix? for Debian:10 relevant fixed versions and status.Īn issue was discovered in disable_priv_mode in shell.c in GNU Bash through 5.0 patch 11. Note: Versions mentioned in the description apply only to the upstream bash package and not the bash package as distributed by Debian:10. There is no fixed version for Debian:10 python3.7. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter. When the attacker can separate query parameters using a semicolon ( ), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via _qsl and _qs by using a vector called parameter cloaking. ![]() See How to fix? for Debian:10 relevant fixed versions and status. Note: Versions mentioned in the description apply only to the upstream python3.7 package and not the python3.7 package as distributed by Debian:10. Upgrade Debian:10 gnutls28 to version 3.6.7-4+deb10u10 or higher. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. ![]() ![]() See How to fix? for Debian:10 relevant fixed versions and status.Ī timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. Note: Versions mentioned in the description apply only to the upstream gnutls28 package and not the gnutls28 package as distributed by Debian:10.
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