Vulnerability Details : CVE-2017-13711
Use-after-free vulnerability in the sofree function in slirp/socket.c in QEMU (aka Quick Emulator) allows attackers to cause a denial of service (QEMU instance crash) by leveraging failure to properly clear ifq_so from pending packets.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2017-13711
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-13711
1.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-13711
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-13711
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-13711
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https://bugzilla.redhat.com/show_bug.cgi?id=1486400
1486400 – (CVE-2017-13711) CVE-2017-13711 QEMU: Slirp: use-after-free when sending responseIssue Tracking;Patch;Third Party Advisory
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https://access.redhat.com/errata/RHSA-2018:0816
RHSA-2018:0816 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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https://access.redhat.com/errata/RHSA-2018:1104
RHSA-2018:1104 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg05201.html
[Qemu-devel] [PATCH] slirp: fix clearing ifq_so from pending packetsPatch;Third Party Advisory
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http://www.debian.org/security/2017/dsa-3991
Debian -- Security Information -- DSA-3991-1 qemuThird Party Advisory
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http://www.securityfocus.com/bid/100534
QEMU CVE-2017-13711 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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https://access.redhat.com/errata/RHSA-2018:1113
RHSA-2018:1113 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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http://www.openwall.com/lists/oss-security/2017/08/29/6
oss-security - CVE-2017-13711 Qemu: Slirp: use-after-free when sending responseMailing List;Patch;Third Party Advisory
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