Security readout for executives and security teams
Plain-English summary
This is a local sudo vulnerability, not a remote internet-facing flaw. A user who can reach sudo on an affected host may cause sudo to read beyond a heap buffer, with possible data exposure or crash-like availability impact depending on platform details.
Executive priority
Treat this as a high-priority local privilege-bound risk, especially on shared or multi-user systems. It is less urgent than a remote unauthenticated flaw, but sudo is broadly deployed and security-critical, so patch through normal expedited operating system maintenance.
Technical view
Sudo 1.8.0 through 1.9.12 is affected when built or configured with the crypt() password backend. The flaw is a CWE-125 out-of-bounds read in plugins/sudoers/auth/passwd.c. CVSS 3.1 is 7.1 with local access and low attack complexity.
Likely exposure
Exposure is limited to hosts running affected sudo versions with the crypt() backend and local users able to invoke sudo. The source bundle does not identify specific distributions beyond vendor advisory references, so confirm through each operating system vendor package status.
Exploitation context
The bundle says KEV is false and provides no cited evidence of active exploitation. Abuse requires local access and sudo availability. Reported impact varies by system libraries, compiler, and processor architecture, so severity may differ across fleets.
Researcher notes
The affected condition is narrow: sudo 1.8.0 through 1.9.12 plus crypt() backend. The public description indicates heap-based buffer over-read, not confirmed privilege escalation. Do not assume exploitability or uniform impact without platform-specific testing and vendor package analysis.
Mitigation direction
- Apply vendor-provided sudo security updates for CVE-2022-43995.
- Check sudo upstream advisories and operating system vendor advisories before rollout.
- Prioritize shared servers, developer workstations, and multi-user Linux systems.
- Reduce unnecessary local shell and sudo access on affected hosts.
- Monitor vendor guidance if no fixed package is available for a platform.
Validation and detection
- Inventory installed sudo versions across Linux and Unix-like assets.
- Identify systems using the crypt() sudo password backend.
- Confirm vendor package advisories mark CVE-2022-43995 fixed.
- Review local sudo access for non-administrative users.
- Check security scanners for CVE-specific package detection.
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-125: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-43995 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
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H1.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.sudo.ws/security/advisories/CVE reference
- https://github.com/sudo-project/sudo/commit/bd209b9f16fcd1270c13db27ae3329c677d48050CVE reference
- https://news.ycombinator.com/item?id=33465707CVE reference
- https://bugzilla.redhat.com/show_bug.cgi?id=2139911CVE reference
- GLSA-202211-08CVE reference · vendor-advisory
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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.