CVE-2016-1494: fedoraproject fedora Improper Input Validation
CVSS: 5.3v3.0MediumModified
AliasesMGASA-2016-0011SUSE-SU-2016:0107-1GHSA-8rjr-6qq5-pj9pPYSEC-2016-10UBUNTU-CVE-2016-1494DEBIAN-CVE-2016-1494
Published 13-01-2016Last modified 05-08-2024
Vulnerability summary
CVE-2016-1494 is a medium (CVSS 5.3) Improper Input Validation vulnerability in fedoraproject fedora. EPSS estimates a 7.05% chance of exploitation in the next 30 days, higher than 94.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.3/10
010
Medium · v3.0 (NVD)EPSS score
7.05%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 13-01-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.
CVSS metrics
5 scores · 4 sources · 2 versionsMedium 5.3Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NSourcesAll 4 agree
- OSV · PypiEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
7.05%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
0.00 pp
From 7.05% on 18-09-2026
18-09-202618-10-2026
EPSS score7.05%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (blog.filippo.io)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- python-rsa< 3.2.3-1.1
Fedoraproject1 product
- fedoraEOL22 | 23
Mageia1 product
- python-rsa< 3.1.4-6.1.mga5
PyPI1 product
- rsa< 3.3
Python1 product
- rsa< 3.3
Suse1 product
- python-rsa&distro=SUSE Linux Enterprise Module for Public Cloud 12< 3.1.4-11.1
Ubuntu1 product
- python-rsa< 3.1.2-1ubuntu0.1
8 vendors · 9 products
References
24 links- www.openwall.com/lists/oss-security/2016/01/05/3Mailing ListX Refsource MLISTThird Party AdvisoryWEB
- blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/X Refsource MISCExploitThird Party AdvisoryWEBARTICLEREPORT
- www.openwall.com/lists/oss-security/2016/01/05/1Mailing ListX Refsource MLISTThird Party AdvisoryWEB
- lists.fedoraproject.org/pipermail/package-announce/2016-January/175897.htmlVendor AdvisoryX Refsource FEDORAThird Party AdvisoryWEB
- lists.opensuse.org/opensuse-updates/2016-01/msg00032.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party AdvisoryWEB
- bitbucket.org/sybren/python-rsa/pull-requests/14/security-fix-bb06-attack-in-verify-by/diffX Refsource CONFIRMPatchThird Party AdvisoryWEB
- lists.fedoraproject.org/pipermail/package-announce/2016-January/175942.htmlVendor AdvisoryX Refsource FEDORAThird Party AdvisoryWEB
Show all 24 references
- bugzilla.suse.com/960680REPORT
