CVE-2015-8701 (GCVE-0-2015-8701)
Vulnerability from cvelistv5 – Published: 2016-12-29 22:00 – Updated: 2024-08-06 08:29
VLAI
EPSS
VEX
Summary
QEMU (aka Quick Emulator) built with the Rocker switch emulation support is vulnerable to an off-by-one error. It happens while processing transmit (tx) descriptors in 'tx_consume' routine, if a descriptor was to have more than allowed (ROCKER_TX_FRAGS_MAX=16) fragments. A privileged user inside guest could use this flaw to cause memory leakage on the host or crash the QEMU process instance resulting in DoS issue.
Severity
6.5 (Medium)
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2015/12/28/6 | mailing-listx_refsource_MLIST |
| https://lists.gnu.org/archive/html/qemu-devel/201… | mailing-listx_refsource_MLIST |
| http://www.securityfocus.com/bid/79706 | vdb-entryx_refsource_BID |
| http://www.openwall.com/lists/oss-security/2015/12/29/1 | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=1286971 | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/201602-01 | vendor-advisoryx_refsource_GENTOO |
Date Public
2015-12-01 00:00
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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