CVE-2017-9503: debian debian_linux NULL Pointer Dereference
Vulnerability summary
CVE-2017-9503 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.8% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 10Timeline
- 16-06-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
QEMU (aka Quick Emulator), when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors involving megasas command processing.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.41% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- qemu< 1:2.10.0-1
- debian_linuxEOL8.0 | 9.0
Qemu1 product
- qemu≤ 2.9.1
Ubuntu1 product
- qemu< 2.0.0+dfsg-2ubuntu1.35 | < 1:2.5+dfsg-5ubuntu10.15
3 vendors · 4 products
References
11 links
lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing ListX Refsource MLISTThird Party Advisory- www.openwall.com/lists/oss-security/2017/06/08/1Mailing ListX Refsource MLISTPatchThird Party Advisory
- lists.gnu.org/archive/html/qemu-devel/2017-06/msg01313.htmlMailing ListX Refsource MLISTIssue TrackingPatchThird Party AdvisoryREPORT
- bugzilla.redhat.com/show_bug.cgi?id=1459477X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
- lists.gnu.org/archive/html/qemu-devel/2017-06/msg01309.htmlMailing ListX Refsource MLISTIssue TrackingPatchThird Party AdvisoryREPORT
- lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory