CVE-2014-7840
The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm
02 Description
The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.11% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 90.3% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2014-12-12 15:00Z11 YR AGO
- Last updated
- 2024-08-06 13:03Z2 YR AGO
- Reserved
- 2014-10-03
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- e3e65fba8aa502095fa486c7e2401f326f437cf07f4a89098ed5017953c76f0b
05 Affected products
06 References
- rhn.redhat.comRHSA-2015:0624http://rhn.redhat.com/errata/RHSA-2015-0624.html
- git.qemu.orghttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=0be839a2701369f669532ea5884c15bead1c6e08
- thread.gmane.org[qemu-devel] 20141112 [PATCH 0/4] migration: fix CVE-2014-7840http://thread.gmane.org/gmane.comp.emulators.qemu/306117
- rhn.redhat.comRHSA-2015:0349http://rhn.redhat.com/errata/RHSA-2015-0349.html
- exchange.xforce.ibmcloud.comqemu-cve20147840-code-exec(99194)https://exchange.xforce.ibmcloud.com/vulnerabilities/99194
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1163075
07 Fixed in
Debian 12
- qemu Fixed in 2.1+dfsg-8
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 2.1+dfsg-8
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 2.1+dfsg-8
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- qemu Fixed in 2.0.0+dfsg-2ubuntu1.9
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.