Security readout for executives and security teams
Plain-English summary
CVE-2024-2961 is a glibc iconv() buffer overflow tied to conversion into ISO-2022-CN-EXT. A small overwrite can crash affected applications and may alter adjacent memory. Business urgency is highest where untrusted text reaches character-set conversion in exposed services.
Executive priority
Treat as high priority for Linux fleets and exposed applications that process untrusted text. It is not KEV-listed in the supplied evidence, so prioritize by reachable conversion paths and vendor patch availability rather than assuming broad emergency compromise.
Technical view
GNU C Library versions 2.39 and older may overflow the caller-supplied iconv() output buffer by up to 4 bytes during ISO-2022-CN-EXT conversion. The CVE maps to CWE-787 and has CVSS 7.3. Impact includes availability loss and limited confidentiality/integrity risk depending on application memory layout.
Likely exposure
Linux systems and products shipping vulnerable glibc are the primary exposure. Risk is application-dependent: services that process attacker-controlled text, uploads, email, web parameters, or encoding conversions have more meaningful exposure than systems where iconv paths are unreachable.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation. Public Ambionics research is cited, indicating serious exploitation interest, but active in-the-wild exploitation is not established by the provided evidence.
Researcher notes
The primitive is a small out-of-bounds write in glibc iconv(), not a standalone universal remote exploit. Application context determines reachability and impact. Avoid assuming product exposure without confirming bundled glibc version and whether vulnerable conversion paths are attacker-controlled.
Mitigation direction
- Apply glibc updates from the operating system or product vendor.
- Prioritize internet-facing services that perform character-set conversion.
- Check Fedora, Debian, NetApp, and Siemens advisories where relevant.
- Review vendor guidance before applying compensating controls.
- Restart affected services after libc package updates where required.
Validation and detection
- Inventory glibc versions across servers, containers, and appliances.
- Identify applications that call iconv() or perform encoding conversion.
- Confirm whether ISO-2022-CN-EXT conversion can receive untrusted input.
- Verify patched package versions against vendor advisories.
- Review crash reports around text conversion workflows.
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-787: 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 lookupCVE-2024-2961 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
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/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.
SSVC decision data
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:N/UI:N/S:U/C:L/I:L/A:H2.54.7CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://sourceware.org/git/?p=glibc.git;a=blob;f=advisories/GLIBC-SA-2024-0004CVE reference, glibc
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P3I4KYS6EU6S7QZ47WFNTPVAHFIUQNEL/CVE reference, glibc
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YAMJQI3Y6BHWV3CUTYBXOZONCUJNOB2Z/CVE reference, glibc
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BTJFBGHDYG5PEIFD5WSSSKSFZ2AZWC5N/CVE reference, glibc
- https://lists.debian.org/debian-lts-announce/2024/05/msg00001.htmlCVE reference, glibc
- https://security.netapp.com/advisory/ntap-20240531-0002/CVE reference, glibc
- https://www.ambionics.io/blog/iconv-cve-2024-2961-p1CVE reference, CVE
- https://www.ambionics.io/blog/iconv-cve-2024-2961-p2CVE reference, CVE
- https://www.ambionics.io/blog/iconv-cve-2024-2961-p3CVE reference, CVE
- https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlCVE reference, siemens-SADP
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 Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.