CVE-2015-8551: debian debian_linux NULL Pointer Dereference
Vulnerability summary
CVE-2015-8551 is a medium (CVSS 6.0) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 39.2% of scored vulnerabilities.
Not severe (CVSS 6, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 17 · Related 13Timeline
- 13-04-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated6.0MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.0MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.45% 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, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu21 products
- linux< 3.13.0-74.118
- linux-azureAll versions (No fix recorded)
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-azure-fde-5.15All versions (No fix recorded)
Suse5 products
- linux_enterprise_desktop11:sp4 | 12:sp1
- linux_enterprise_real_time_extension11:sp4 | 12:sp1
- linux_enterprise_server11 | 11:sp4 | 12:sp1
- linux_enterprise_software_development_kit11:sp4 | 12:sp1
- linux_enterprise_workstation_extension12:sp1
Debian2 products
- linux< 4.3.3-3
- debian_linuxEOL7.0 | 8.0
Linux1 product
- linux_kernel≥ 3.1, ≤ 3.1.10 | ≥ 4.3.0, ≤ 4.3.6
Opensuse1 product
- opensuseEOL13.1
5 vendors · 30 products
References
23 links- lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
Show all 23 references
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory