Multiple integer overflows in the th_read function in lib/block.c in libtar before 1.2.20 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long (1) name or (2) link in an archive, which triggers a heap-based buffer overflow.
Conclusion & alert: CVE-2013-4397 is rated High Exploit Risk (67.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.26%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-30 | 11.63% | 4.26% | -7.37% |
| 2 | 2025-03-29 | 4.26% | 11.63% | +7.37% |
| 3 | 2025-03-17 | — | 4.26% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2013-4397 not yet assigned priority: Debian including 1 source packages (libtar), 2 status rows across 2 suites (bookworm, bullseye): resolved 2. | https://security-tracker.debian.org/tracker/CVE-2013-4397 |
gentoo
|
normal | CVE-2013-4397: 1 GLSA(s) (201402-19), 1 atom(s) (dev-libs/libtar); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-4397 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2013-4397 |
ubuntu
|
medium | CVE-2013-4397 medium priority: Ubuntu including 1 source packages (libtar), 13 status rows across 13 suites (lucid, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 6, ignored 5, DNE 1, released 1. | https://ubuntu.com/security/CVE-2013-4397 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| redhat | enterprise_linux | 6.0 | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* |
| feep | libtar | <= 1.2.19 | cpe:2.3:a:feep:libtar:*:*:*:*:*:*:*:* |
| feep | libtar | 1.2.11 | cpe:2.3:a:feep:libtar:1.2.11:*:*:*:*:*:*:* |
| feep | libtar | 1.2.13 | cpe:2.3:a:feep:libtar:1.2.13:*:*:*:*:*:*:* |
| feep | libtar | 1.2.14 | cpe:2.3:a:feep:libtar:1.2.14:*:*:*:*:*:*:* |
| feep | libtar | 1.2.15 | cpe:2.3:a:feep:libtar:1.2.15:*:*:*:*:*:*:* |
| feep | libtar | 1.2.16 | cpe:2.3:a:feep:libtar:1.2.16:*:*:*:*:*:*:* |
| feep | libtar | 1.2.17 | cpe:2.3:a:feep:libtar:1.2.17:*:*:*:*:*:*:* |
| feep | libtar | 1.2.18 | cpe:2.3:a:feep:libtar:1.2.18:*:*:*:*:*:*:* |