Vulnerability · Published Jul 1, 2021 · Assigned by mitre
CVE-2020-36403
High 8.8
In plain English
A high-severity security flaw in the htslib package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.6%top 24.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
HTSlib through 1.10.2 allows out-of-bounds write access in vcf_parse_format (called from vcf_parse and vcf_read).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | htslib | 1.11-1 | DEBIAN-CVE-2020-36403 |
| Debian:13 | htslib | 1.11-1 | DEBIAN-CVE-2020-36403 |
| Debian:14 | htslib | 1.11-1 | DEBIAN-CVE-2020-36403 |
Affected products (as reported)
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097 x_refsource_MISC
- https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c x_refsource_MISC
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/htslib/OSV-2020-955.yaml x_refsource_MISC
- https://github.com/samtools/htslib/pull/1447 x_refsource_MISC