CVE-2020-27770 — Vulnetix

CVE-2020-27770 PUBLISHED

Due to a missing check for 0 value of `replace_extent`, it is possible for offset `p` to overflow in SubstituteString(), causing potential impact to application availability. This could be triggered by a crafted input file that is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.

EPSS 0.14% · 34.0th percentile

Risk Scores

EPSS Score

0.14%

34.0th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:20.04:LTS	imagemagick	8:6.9.10.23+dfsg-2.1ubuntu8, 8:6.9.10.23+dfsg-2.1ubuntu9, 8:6.9.10.23+dfsg-2.1ubuntu10
Ubuntu:18.04:LTS	imagemagick	8:6.9.7.4+dfsg-16ubuntu6.9, *, 8:6.9.7.4+dfsg-16ubuntu2
Ubuntu:Pro:16.04:LTS	imagemagick	, , 8:6.8.9.9-7ubuntu5.16+esm1

Exploit Intelligence

CIRCL seen: CVE-2020-27770 (circl-sighting)
https://bugzilla.redhat.com/show_bug.cgi?id=1894691 (circl)
[debian-lts-announce] 20210323 [SECURITY] [DLA 2602-1] imagemagick security update (circl)
[debian-lts-announce] 20230311 [SECURITY] [DLA 3357-1] imagemagick security update (circl)

Timeline

Dec 4, 2020 CVE Published
Dec 4, 2020 PoC Published
Apr 14, 2021 EPSS Score
Jun 23, 2021 EPSS Score
Aug 24, 2021 EPSS Score
Oct 26, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Feb 4, 2022 EPSS Score
Feb 28, 2022 EPSS Score
Apr 1, 2022 EPSS Score
May 1, 2022 EPSS Score
Jul 3, 2022 EPSS Score

References

https://ubuntu.com/security/CVE-2020-27770 third-party-advisory
https://ubuntu.com/security/notices/USN-4988-1 vendor-advisory
https://ubuntu.com/security/notices/USN-5335-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2020-27770 third-party-advisory
https://ubuntu.com/security/notices/USN-7068-1 vendor-advisory

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