An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a…
Priority LOW 38CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.
Why it matters now
EPSS 0.02555 85th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 2 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:exiv2:exiv2:0.27.3:-:*:*:*:*:*:* | 0.27.3 | Vulnerable | Exiv2 |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 33 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
- cpe:2.3:a:exiv2:exiv2:0.27.3:-:*:*:*:*:*:* Versions 0.27.3 Vulnerable ·Exiv2
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
Remediation
Red Hat 2 advisories
- RHSA-2021:4319 Released 2021-11-09 · Red Hat rating Moderatecompat-exiv2-026 security update
- Red Hat Enterprise Linux AppStream (v. 8) compat-exiv2-026-0.26-6.el8
- RHSA-2021:4173 Released 2021-11-09 · Red Hat rating Moderateexiv2 security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) exiv2-devel-0.27.4-5.el8, exiv2-doc-0.27.4-5.el8
- Red Hat Enterprise Linux AppStream (v. 8) exiv2-0.27.4-5.el8, exiv2-libs-0.27.4-5.el8
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2021:4173 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:4173, RHSA-2021:4319 |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31292
- 2026-10-03 Alias added: GHSA-6558-x489-9qhw
References
Sources
- CVE-2021-31292 · CVE Program
- CVE-2021-31292 · NVD
- FIRST EPSS
- GHSA-6558-x489-9qhw · GitHub Advisory Database · CC BY 4.0
- CVE-2021-31292 · Red Hat security data · CC BY 4.0
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