| Name | CVE-2022-4543 |
| Description | A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| linux (PTS) | bullseye | 5.10.223-1 | vulnerable |
| bullseye (security) | 5.10.237-1 | vulnerable |
| bookworm | 6.1.137-1 | vulnerable |
| bookworm (security) | 6.1.140-1 | vulnerable |
| trixie (security) | 6.12.31-1 | vulnerable |
| sid, trixie | 6.12.32-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| linux | source | (unstable) | (unfixed) | unimportant | | |
Notes
https://www.openwall.com/lists/oss-security/2022/12/16/3
https://www.willsroot.io/2022/12/entrybleed.html
Ignored upstream and KASLR is not expected to be resistant to local attacks.