crypto: krb5 - use kfree_sensitive() for derived key buffers
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.49, 7.1.13, 7.2.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: krb5 - use kfree_sensitive() for derived key buffers crypto_krb5_prepare_encryption() and crypto_krb5_prepare_checksum() free the buffer holding the freshly derived keys with plain kfree(), leaving the key material behind in the freed slab object.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 3936f02bf2d3308a7359dd37dd96cd60603d8170 · fixed in 731a5b6fb4c1705f9405d9029dd64ea81e336207; From 3936f02bf2d3308a7359dd37dd96cd60603d8170 · fixed in 91b96dc9cc250cd16751f53de525cf3442ca0962; From 3936f02bf2d3308a7359dd37dd96cd60603d8170 · fixed in a1bf79365794783b19f5b09e8a23f7ee311e8931; From 3936f02bf2d3308a7359dd37dd96cd60603d8170 · fixed in f7d53dd3f267e46a784f219a75072f2f400d42b9
- Linux Linux
6.15
- KernelLinux
From 6.15.0 · fixed in 6.18.49; From 6.19.0 · fixed in 7.1.13; From 7.2.0 · fixed in 7.2.3