| Name | CVE-2023-4135 |
| Description | A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can be disclosed. |
| 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 | 1050142 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | buster | 1:3.1+dfsg-8+deb10u8 | fixed |
| buster (security) | 1:3.1+dfsg-8+deb10u12 | fixed |
| bullseye | 1:5.2+dfsg-11+deb11u3 | fixed |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | fixed |
| bookworm | 1:7.2+dfsg-7+deb12u5 | fixed |
| sid, trixie | 1:8.2.3+ds-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| qemu | source | buster | (not affected) | | | |
| qemu | source | bullseye | (not affected) | | | |
| qemu | source | bookworm | (not affected) | | | |
| qemu | source | (unstable) | 1:8.0.4+dfsg-2 | | | 1050142 |
Notes
[bookworm] - qemu <not-affected> (Vulnerable code not present)
[bullseye] - qemu <not-affected> (Vulnerable code not present)
[buster] - qemu <not-affected> (Vulnerable code not present)
https://bugzilla.redhat.com/show_bug.cgi?id=2229101
https://www.zerodayinitiative.com/advisories/ZDI-CAN-21521
Introduced by: https://gitlab.com/qemu-project/qemu/-/commit/73064edfb864743cde2c08f319609344af02aeb3 (v8.0.0-rc0)
Fixed by: https://gitlab.com/qemu-project/qemu/-/commit/ecb1b7b082d3b7dceff0e486a114502fc52c0fdf (v8.1.0-rc4)