Description
Multiple heap-based buffer overflows in the cirrus_invalidate_region function in the Cirrus VGA extension in QEMU 0.8.2, as used in Xen and possibly other products, might allow local users to execute arbitrary code via unspecified vectors related to "attempting to mark non-existent regions as dirty," aka the "bitblt" heap overflow.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qemu | 0.9.0-2 | — |
| Debian 13 | qemu | 0.9.0-2 | — |
| Debian 12 | qemu | 0.9.0-2 | — |
| Debian 5.0 | kvm | 60+dfsg-1+lenny1 | DTSA-133-1 |
| Debian 5.0 | qemu | 0.8.2-5lenny1 | DTSA-38-1 |
| Debian 4.0 | qemu | 0.8.2-4etch1 | DSA-1284-1 |
| Debian 4.0 | xen-3.0 | 3.0.3-0-3 | DSA-1384-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | qemu | 0.6.1+20050407-1sarge1 | DSA-1284-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | xen +1 | 3.0.3-25.0.4.el5 | RHSA-2007:0323 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Virtualization 5 | xen +1 | 3.0.3-25.0.4.el5 | RHSA-2007:0323 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.15.1_01-1.2 | openSUSE-SU-2024:11520-1 |
Advisories 6
- RHSA-2007:0323 Red Hat Security Advisory: xen security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DTSA-133-1 kvm - multiple vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1384-1 xen-3.0 Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1284-1 qemu Debian Security (DSA / DLA) · Mar 9, 2026
- DTSA-38-1 qemu - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11520-1 xen-4.15.1_01-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 23731 vdb-entry
- MDKSA-2007:203 vendor-advisory
- FEDORA-2008-4386 vendor-advisory
- oval:org.mitre.oval:def:10315 vdb-entry signature
- 35494 vdb-entry
- 27047 third-party-advisory
- FEDORA-2008-4604 vendor-advisory
- DSA-1284 vendor-advisory
- 25073 third-party-advisory
- http://taviso.decsystem.org/virtsec.pdf
- 27486 third-party-advisory
- MDVSA-2008:162 vendor-advisory
- 27085 third-party-advisory
- SUSE-SR:2009:002 vendor-advisory
- 30413 third-party-advisory
- 33568 third-party-advisory
- ADV-2007-1597 vdb-entry
- 27103 third-party-advisory
- 29129 third-party-advisory
- RHSA-2007:0323 vendor-advisory
- 25095 third-party-advisory
- FEDORA-2007-713 vendor-advisory
- DSA-1384 vendor-advisory