QNX Software Development Platform (SDP): Off-by-one Error
CVE-2024-48854 is a high-severity off-by-one error vulnerability in QNX Software Development Platform (SDP) from BlackBerry, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected QNX Software Development Platform (SDP) versions: 8.0, 7.1 and 7.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.37% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of QNX Software Development Platform (SDP) you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on support.blackberry.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| BlackBerry | QNX Software Development Platform (SDP) | 8.0, 7.1 and 7.0 | Not stated |
| Blackberry | Qnx Software Development Platform | 7.0; 7.1; 8.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.3 | Medium | CNA (blackberry.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Off-by-one error in the TIFF image codec in QNX SDP versions 8.0, 7.1 and 7.0 could allow an unauthenticated attacker to cause an information disclosure in the context of the process using the image codec.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Off-by-one Error
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
How developers prevent this class of flaw
- When copying character arrays or using character manipulation methods, the correct size parameter must be used to account for the null terminator that needs to be added at the end of the array. Some examples of functions susceptible to this weakness in C include strcpy(), strncpy(), strcat(), strncat(), printf(), sprintf(), scanf() and sscanf().
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in QNX Software Development Platform (SDP)
- 9.8 Critical severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
- 9.0 Critical severity
Recent Off-by-one Error vulnerabilities
- 7.1 High severity
- 9.8 Critical severity
- 7.8 High severity
- 7.1 High severity
- 7.1 High severity
- 7.8 High severity
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