CVE-2018-5766: libav
CVSS: 8.8v3.0HighModified
AliasesUBUNTU-CVE-2018-5766
Published 18-01-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-5766 is a high (CVSS 8.8) vulnerability in libav. EPSS estimates a 2.47% chance of exploitation in the next 30 days, higher than 84.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.0 (NVD)EPSS score
2.47%
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 1Timeline
- 18-01-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In Libav through 12.2, there is an invalid memcpy in the av_packet_ref function of libavcodec/avpacket.c. Remote attackers could leverage this vulnerability to cause a denial of service (segmentation fault) via a crafted avi file.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/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
2.47%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.47% on 18-09-2026
18-09-202618-10-2026
EPSS score2.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.libav.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Libav1 product
- libav≤ 12.2
Ubuntu1 product
- libavAll versions (No fix recorded)
2 vendors · 2 products
References
5 links- bugzilla.libav.org/show_bug.cgi?id=1112X Refsource MISCExploitIssue TrackingThird Party AdvisoryREPORT
