Security readout for executives and security teams
Plain-English summary
lrzip 0.631 has a memory safety bug while decompressing data. A malicious archive could crash the program, and the CVE leaves open the possibility of other unspecified impact. Business urgency is highest where lrzip processes files from customers, email, uploads, or automated pipelines.
Executive priority
Prioritize remediation if lrzip is used in customer-facing upload, email, malware analysis, backup, or data ingestion workflows. Otherwise, treat as routine patch hygiene with targeted inventory.
Technical view
CVE-2018-10685 is a use-after-free in lrzip's lzma_decompress_buf function in stream.c. The provided CVE description says remote attackers can cause denial of service through an application crash, with unspecified other impact possible. The bundle does not provide CVSS, CWE, or detailed affected package ranges beyond lrzip 0.631.
Likely exposure
Exposure is likely limited to systems with Long Range Zip lrzip 0.631, or vulnerable distribution packages, especially where untrusted compressed archives are processed automatically.
Exploitation context
The source bundle marks CISA KEV as false and provides no evidence of active exploitation. Public references include a GitHub issue and a Debian LTS security update, but no exploit status is stated.
Researcher notes
Evidence is sparse: no CVSS, CWE, exploit details, or upstream fixed version is included in the bundle. Analysis should stay anchored to lrzip 0.631 and Debian's security advisory unless additional vendor data is obtained.
Mitigation direction
- Apply vendor or distribution lrzip security updates where available.
- For Debian LTS, review and apply DLA 2725-1 guidance.
- Avoid using vulnerable lrzip on untrusted archives.
- Sandbox automated archive processing that invokes lrzip.
- Remove lrzip where it is not operationally required.
Validation and detection
- Inventory hosts and containers for installed lrzip packages.
- Check whether lrzip version 0.631 is present.
- Identify services or jobs processing user-supplied archives.
- Confirm applicable distribution security update status.
- Review crash logs for lrzip failures during archive 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.
CVE-2018-10685 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/ckolivas/lrzip/issues/95CVE reference · x_refsource_MISC
- [debian-lts-announce] 20210801 [SECURITY] [DLA 2725-1] lrzip security updateCVE reference · mailing-list, x_refsource_MLIST
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.