CVE-2018-25014 — A use of uninitialized value was found in libwebp in versions before 1

A use of uninitialized value was found in libwebp in versions before 1.0.1 in ReadSymbol().

01What is this vulnerability?

A use of uninitialized value was found in libwebp in versions before 1.0.1 in ReadSymbol().

02Affected products

Vendor	Product	Versions
n	a / libwebp	libwebp 1.0.1

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2021-05-21T16:27:57.000Z
• Last modified: 2024-08-05T12:26:39.521Z

09References

• bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=1956927
• bugs.chromium.org — https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9496
• chromium.googlesource.com — https://chromium.googlesource.com/webm/libwebp/+log/78ad57a36ad69a9c22874b182d49…