| Name | CVE-2020-29040 |
| Description | An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | medium |
| Debian Bugs | 976109 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| xen (PTS) | stretch (security), stretch | 4.8.5.final+shim4.10.4-1+deb9u12 | fixed |
| buster | 4.11.4+99-g8bce4698f6-1 | fixed | |
| buster (security) | 4.11.4+107-gef32c7afa2-1 | fixed | |
| bookworm, bullseye | 4.14.2+25-gb6a8c4f72d-2 | fixed | |
| sid | 4.14.3-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| xen | source | stretch | (not affected) | |||
| xen | source | buster | (not affected) | |||
| xen | source | (unstable) | 4.14.0+88-g1d1d1f5391-1 | 976109 |
[buster] - xen <not-affected> (Patches for XSA-346 not applied)
[stretch] - xen <not-affected> (Patches for XSA-346 not applied)
https://xenbits.xen.org/xsa/advisory-355.html
Issue introduced by changes for XSA-346.