CVE-2022-1462
Description
Important: kernel-rt security and bug fix update
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Mitigation details
CVE-2022-1462 NameCVE-2022-1462 DescriptionAn out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.…
CVE-2022-1462
| Name | CVE-2022-1462 |
| Description | An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3131-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bullseye | 5.10.223-1 | fixed |
| bullseye (security) | 5.10.257-1 | fixed | |
| bookworm | 6.1.170-3 | fixed | |
| bookworm (security) | 6.1.172-1 | fixed | |
| trixie | 6.12.86-1 | fixed | |
| trixie (security) | 6.12.90-1 | fixed | |
| forky | 7.0.9-1 | fixed | |
| sid | 7.0.10-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | buster | 4.19.260-1 | DLA-3131-1 | ||
| linux | source | bullseye | 5.10.136-1 | |||
| linux | source | (unstable) | 5.18.14-1 |
Notes
https://bugzilla.redhat.com/show_bug.cgi?id=2078466
https://www.openwall.com/lists/oss-security/2022/05/27/2
Apply commands
https://bugzilla.redhat.com/show_bug.cgi?id=2078466https://www.openwall.com/lists/oss-security/2022/05/27/2OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 5.18.14-1 |
| debian | bullseye | fixed | 5.10.136-1 |
| debian | forky | fixed | 5.18.14-1 |
| debian | sid | fixed | 5.18.14-1 |
| debian | trixie | fixed | 5.18.14-1 |
| almalinux | 8 | fixed | kernel-rt-debug-core-4.18.0-477.10.1.rt7.274.el8_8.x86_64.rpm |
| almalinux | 9 | fixed | kernel-devel-matched-5.14.0-284.11.1.el9_2.aarch64.rpm |
References
- https://access.redhat.com/errata/RHSA-2023:2148
- https://access.redhat.com/errata/RHSA-2023:2458
- https://www.suse.com/security/cve/CVE-2022-1462.html
- https://security-tracker.debian.org/tracker/CVE-2022-1462
- https://bugzilla.redhat.com/2061703
- https://bugzilla.redhat.com/2073091
- https://bugzilla.redhat.com/2078466
- https://bugzilla.redhat.com/2089701
- https://bugzilla.redhat.com/2090723
- https://bugzilla.redhat.com/2106830
- https://bugzilla.redhat.com/2107924
- https://bugzilla.redhat.com/2108691
- https://bugzilla.redhat.com/2114937
- https://bugzilla.redhat.com/2122228
- https://bugzilla.redhat.com/2123056
- https://bugzilla.redhat.com/2124788
- https://bugzilla.redhat.com/2130141
- https://bugzilla.redhat.com/2133483
- https://bugzilla.redhat.com/2133490
- https://bugzilla.redhat.com/2134377
- https://bugzilla.redhat.com/2134380
- https://bugzilla.redhat.com/2134451
- https://bugzilla.redhat.com/2134506
- https://bugzilla.redhat.com/2134517
- https://bugzilla.redhat.com/2134528
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.