Security readout for executives and security teams
Plain-English summary
This issue affects older SUSE Open Build Service source servers. A permitted buildservice user could submit patch content that creates unexpected file types, such as symlinks or device nodes, potentially escaping intended confinement or disrupting the source service.
Executive priority
Treat this as a moderate operational risk. Prioritize remediation for shared or multi-tenant build infrastructure because authenticated users may affect service integrity or availability.
Technical view
Open Build Service 2.6 before 2.6.3, 2.5 before 2.5.7, and 2.4 before 2.4.8 mishandled source service patch application. The CVE describes generation of non-standard files, enabling low-privileged users to impact confidentiality, integrity, and availability.
Likely exposure
Exposure is limited to Open Build Service deployments running the affected 2.4, 2.5, or 2.6 branches, especially where buildservice users can submit source patches or trigger source services.
Exploitation context
The source bundle provides no evidence of active exploitation, and KEV status is false. Exploitation requires authenticated buildservice user privileges, not anonymous access, based on the CVSS privileges-required signal and description.
Researcher notes
Evidence is concise but consistent: patch application could create symlinks or device nodes. The public bundle does not provide exploit details, observed exploitation, or broader affected products beyond SUSE Open Build Service.
Mitigation direction
- Upgrade Open Build Service to 2.6.3, 2.5.7, 2.4.8, or later supported releases.
- Review SUSE guidance and the referenced upstream commit before production rollout.
- Restrict source patch submission to trusted buildservice users where practical.
- Monitor source service stability and investigate unexplained confinement or file-handling anomalies.
Validation and detection
- Inventory Open Build Service versions and identify any 2.4, 2.5, or 2.6 deployments.
- Confirm affected deployments include the referenced upstream fix or a vendor backport.
- Review buildservice user roles allowed to submit source patches.
- Check source service logs for denial-of-service symptoms or suspicious non-standard file handling.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2015-0796 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.3 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L2.83.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.3MediumVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.suse.com/show_bug.cgi?id=941099CVE reference · x_refsource_CONFIRM
- https://github.com/openSUSE/open-build-service/commit/474a3db19498765f0118ba3dbc0b1cc90b0097fcCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.