| Name | CVE-2023-40546 |
| Description | A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1061519 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| shim (PTS) | buster | 15.4-7~deb10u1 | vulnerable |
| buster (security) | 15.7-1~deb10u1 | vulnerable |
| bullseye | 15.7-1~deb11u1 | vulnerable |
| trixie, bookworm, sid | 15.7-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| shim | source | (unstable) | (unfixed) | | | 1061519 |
Notes
[bookworm] - shim <no-dsa> (Minor issue, fix with a point release)
[bullseye] - shim <no-dsa> (Minor issue, fix with a point release)
https://bugzilla.redhat.com/show_bug.cgi?id=2241796
https://github.com/rhboot/shim/commit/66e6579dbf921152f647a0c16da1d3b2f40861ca (15.8)
https://github.com/rhboot/shim/commit/dae82f6bd72cf600e5d48046ec674a441d0f49d7 (15.8)