CVE-2020-16002: debian debian_linux Use After Free
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2020-16002DEBIAN-CVE-2020-16002
Published 03-11-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-16002 is a high (CVSS 8.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 1.65% chance of exploitation in the next 30 days, higher than 76.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.65%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 9 · Related 7Timeline
- 03-11-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Use after free in PDFium in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.65%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
0.00 pp
From 1.65% on 19-09-2026
19-09-202619-10-2026
EPSS score1.65%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (crbug.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Debian2 products
- chromium< 87.0.4280.88-0.1
- debian_linuxEOL10.0
Fedoraproject1 product
- fedoraEOL31 | 32 | 33
Google1 product
- chrome≥ unspecified, < 86.0.4240.111 | < 86.0.4240.111
Opensuse1 product
- backports_sle15.0:sp2
Ubuntu1 product
- chromium-browser< 86.0.4240.198-0ubuntu0.16.04.1 | < 86.0.4240.198-0ubuntu0.18.04.1
5 vendors · 6 products
References
11 links- chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.htmlX Refsource MISCVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
