Bug 1980253 (CVE-2020-36403) - CVE-2020-36403 htslib: out-of-bounds write access in vcf_parse_format()
Summary: CVE-2020-36403 htslib: out-of-bounds write access in vcf_parse_format()
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-36403
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1980255 1980254
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-07-08 08:14 UTC by Marian Rehak
Modified: 2021-07-08 10:40 UTC (History)
2 users (show)

Fixed In Version: htslib 1.10.2
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Clone Of:
Environment:
Last Closed: 2021-07-08 10:40:21 UTC

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Description Marian Rehak 2021-07-08 08:14:02 UTC 
htslib 1.10 through 1.10.2 allows out-of-bounds write access in vcf_parse_format (called from vcf_parse and vcf_read).

Reference:

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/htslib/OSV-2020-955.yaml
https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097
Comment 1 Marian Rehak 2021-07-08 08:14:46 UTC 
Created htslib tracking bugs for this issue:

Affects: epel-all [bug 1980255]
Affects: fedora-all [bug 1980254]
Comment 2 Product Security DevOps Team 2021-07-08 10:40:21 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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