Vulnerability · Published May 21, 2021 · Assigned by redhat
CVE-2020-36331
Critical 9.1
In plain English
A critical-severity out-of-bounds read in libwebp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.1Critical
Exploit odds (30 days)2.3%top 16.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkAssignData. The highest threat from this vulnerability is to data confidentiality and to the service availability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libwebp | 1.0.0-5.el8 | ALSA-2021:4231 |
| AlmaLinux:8 | libwebp-devel | 1.0.0-5.el8 | ALSA-2021:4231 |
| Debian:12 | libwebp | 0.6.1-2.1 | DEBIAN-CVE-2020-36331 |
| Debian:13 | libwebp | 0.6.1-2.1 | DEBIAN-CVE-2020-36331 |
| Debian:14 | libwebp | 0.6.1-2.1 | DEBIAN-CVE-2020-36331 |
| Rocky Linux:8 | libwebp | 0:1.0.0-5.el8 | RLSA-2021:4231 |
Affected products (as reported)
Weakness: CWE-125
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1956856 x_refsource_MISC
- [debian-lts-announce] 20210605 [SECURITY] [DLA 2672-1] libwebp security update mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20210606 [SECURITY] [DLA 2677-1] libwebp security update mailing-list, x_refsource_MLIST
- DSA-4930 vendor-advisory, x_refsource_DEBIAN
- https://support.apple.com/kb/HT212601 x_refsource_CONFIRM
- 20210723 APPLE-SA-2021-07-21-1 iOS 14.7 and iPadOS 14.7 mailing-list, x_refsource_FULLDISC
- https://security.netapp.com/advisory/ntap-20211112-0001/ x_refsource_CONFIRM