CVE-2018-20751: podofo_project podofo NULL Pointer Dereference
Vulnerability summary
CVE-2018-20751 is a high (CVSS 8.8) NULL Pointer Dereference vulnerability in podofo_project podofo. EPSS estimates a 1.64% chance of exploitation in the next 30 days, higher than 75.9% of scored vulnerabilities. 2 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 04-02-2019PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName("MediaBox"),var) can be problematic due to the function GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which causes a NULL pointer dereference.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.64%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
0.00 pp
From 1.64% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (research.loginsoft.com)
Maturity: unknown
Exploit Reference (sourceforge.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- libpodofo< 0.9.6+dfsg-4
Podofo_project1 product
- podofo0.9.6
Ubuntu1 product
- libpodofoAll versions (No fix recorded)
3 vendors · 3 products
References
6 links- research.loginsoft.com/bugs/null-pointer-dereference-vulnerability-in-crop_page-podofo-0-9-6/X Refsource MISCExploitThird Party AdvisoryREPORT
