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Fencer Intel
high 7.5

CVE-2014-9087 json

Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in GnuPG, allows remote attackers to cause a denial of s…

published 11y ago modified 4mo ago also EUVD-2014-8913

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.7%
EPSS 5.7% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in GnuPG, allows remote attackers to cause a denial of service (crash) via a crafted OID in a (1) S/MIME message or (2) ECC based OpenPGP data, which triggers a buffer overflow.

Patch / fix

  • gnupg libksba 1.3.2
  • libksba Debian 14, Debian 13, Debian 12 1.3.2-1

debian advisories DEBIAN-CVE-2014-9087

  • libksba Ubuntu 14.04 LTS 1.3.0-3ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2014-9087

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libksba openSUSE Tumbleweed 1.3.5-1.3

opensuse advisories openSUSE-SU-2024:10126-1

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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-2014-9087 updated cvss 5.1

libksba: integer underflow flaw leading to a heap-based buffer overflow in ksba_oid_to_str()

  • Red Hat Enterprise Linux 5 libksba Red Hat Enterprise Linux 6 libksba Red Hat Enterprise Linux 7 libksba
    affected: no fix planned “Will not fix”

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

5.66% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-191 Integer Underflow (Wrap or Wraparound)

References

Sources

Fencer Intel 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.