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Fencer Vulns
critical 10.0

CVE-2009-3245 in the critical feed json

OpenSSL before 0.9.8m does not check for a NULL return value from bn_wexpand function calls in (1) crypto/bn/bn_div.c, (2) crypto/bn/bn_gf2…

published 2010-03-05 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3228

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.8%
EPSS 5.8% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

OpenSSL before 0.9.8m does not check for a NULL return value from bn_wexpand function calls in (1) crypto/bn/bn_div.c, (2) crypto/bn/bn_gf2m.c, (3) crypto/ec/ec2_smpl.c, and (4) engines/e_ubsec.c, which has unspecified impact and context-dependent attack vectors.

Patch / fix

  • openssl Debian 14, Debian 13, Debian 12 0.9.8m-1

debian advisories DEBIAN-CVE-2009-3245

  • openssl RHEL 4 0.9.7a-43.17.el4_8.6
  • openssl-perl RHEL 4 0.9.7a-43.17.el4_8.6
  • openssl RHEL 5 0.9.8e-12.el5_4.6
  • openssl-perl RHEL 5 0.9.8e-12.el5_4.6
  • openssl096b RHEL 3 0.9.6b-16.50
  • openssl096b RHEL 4 0.9.6b-22.46.el4_8.1
  • rhev-hypervisor RHEL 5 5.4-2.1.12.1.el5_4rhev2_1
  • rhev-hypervisor-pxe RHEL 5 5.4-2.1.12.1.el5_4rhev2_1

red hat advisories RHSA-2010:0977RHSA-2010:0162RHSA-2010:0173RHSA-2010:0440

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-3245 updated cvss 7.6

openssl: missing bn_wexpand return value checks

  • Red Hat Desktop version 3 openssl096b 0.9.6b-16.50
    fixed: vendor fix RHSA-2010:0173
  • Red Hat Enterprise Linux (v. 5 server) openssl 0.9.8e-12.el5_4.6, openssl-perl 0.9.8e-12.el5_4.6
    fixed: vendor fix RHSA-2010:0162
  • Red Hat Enterprise Linux AS version 3 openssl096b 0.9.6b-16.50 Red Hat Enterprise Linux AS version 4 openssl 0.9.7a-43.17.el4_8.6, openssl096b 0.9.6b-22.46.el4_8.1, openssl-perl 0.9.7a-43.17.el4_8.6
    fixed: vendor fix RHSA-2010:0173
  • Red Hat Enterprise Linux Desktop (v. 5 client) openssl 0.9.8e-12.el5_4.6, openssl-perl 0.9.8e-12.el5_4.6
    fixed: vendor fix RHSA-2010:0162
  • Red Hat Enterprise Linux Desktop version 4 openssl 0.9.7a-43.17.el4_8.6, openssl096b 0.9.6b-22.46.el4_8.1, openssl-perl 0.9.7a-43.17.el4_8.6
    fixed: vendor fix RHSA-2010:0173
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) openssl 0.9.8e-12.el5_4.6
    fixed: vendor fix RHSA-2010:0162
  • Red Hat Enterprise Linux ES version 3 openssl096b 0.9.6b-16.50 Red Hat Enterprise Linux ES version 4 openssl 0.9.7a-43.17.el4_8.6, openssl096b 0.9.6b-22.46.el4_8.1, openssl-perl 0.9.7a-43.17.el4_8.6 Red Hat Enterprise Linux WS version 3 openssl096b 0.9.6b-16.50 Red Hat Enterprise Linux WS version 4 openssl 0.9.7a-43.17.el4_8.6, openssl096b 0.9.6b-22.46.el4_8.1, openssl-perl 0.9.7a-43.17.el4_8.6
    fixed: vendor fix RHSA-2010:0173
  • Red Hat Enterprise Virtualization Hypervisor 5 rhev-hypervisor 5.4-2.1.12.1.el5_4rhev2_1, rhev-hypervisor-pxe 5.4-2.1.12.1.el5_4rhev2_1
    fixed: vendor fix RHSA-2010:0440
show 1 more

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.78% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.