CVE-2011-4968: debian debian_linux Improper Input Validation
CVSS: 5.8v2.0MediumModified
AliasesUBUNTU-CVE-2011-4968DEBIAN-CVE-2011-4968
Published 19-11-2019Last modified 07-08-2024
Vulnerability summary
CVE-2011-4968 is a medium (CVSS 5.8) Improper Input Validation vulnerability in debian debian_linux. EPSS estimates a 3.99% chance of exploitation in the next 30 days, higher than 90.3% of scored vulnerabilities.
CVSS score
5.8/10
010
Medium · v2.0 (NVD)EPSS score
3.99%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 19-11-2019PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
nginx http proxy module does not verify peer identity of https origin server which could facilitate man-in-the-middle attack (MITM)
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 4.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
3.99%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.99% on 18-09-2026
18-09-202618-10-2026
EPSS score3.99%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- nginx< 1.9.1-1
- debian_linuxEOL8.0
F51 product
- nginxEOL0.7.61 | 0.7.62 | 0.7.64 | 0.7.65 | 0.7.66 | 0.8.33 | 0.8.35 | 0.8.36 | 0.8.40 | 1.2.6
Nginx1 product
- nginx≤ 1.6.2
Ubuntu1 product
- nginxAll versions (No fix recorded)
4 vendors · 5 products
References
10 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4968X Refsource MISCIssue TrackingPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2013/01/03/8X Refsource MISCMailing ListPatchThird Party Advisory