vulnwire
7.5high

CVE-2016-4356

The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-o…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
3.3%
percentile 88%
Public exploits
0
none known

The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.

Exploit prediction (EPSS)

3.28% probability of exploitation in the next 30 days, higher than 88% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • openwall.com /lists/oss-security/2016/05/10/3 · mailing-list, x_refsource_MLIST, x_transferred
  • ubuntu.com /usn/USN-2982-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • openwall.com /lists/oss-security/2016/04/29/5 · mailing-list, x_refsource_MLIST, x_transferred
  • openwall.com /lists/oss-security/2016/04/29/8 · mailing-list, x_refsource_MLIST, x_transferred
  • git.gnupg.org /cgi-bin/gitweb.cgi?p=libksba.git%3Ba=commit%3Bh=243d12fdec66a4360fbb3e307a046b39b5b4ffc3 · x_refsource_CONFIRM, x_transferred
  • security.gentoo.org /glsa/201604-04 · vendor-advisory, x_refsource_GENTOO, x_transferred

Sources

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