6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.025 Low
EPSS
Percentile
90.2%
The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5
performs an incorrect cast, which allows remote attackers to cause a denial
of service (application crash) and possibly execute arbitrary code via
crafted tags in a YAML document, which triggers a heap-based buffer
overflow.
Author | Note |
---|---|
mdeslaur | regression was introduced in USN-2098-1 redhat created three patches: libyaml-string-overflow.patch is upstream 1d73f004f49e6962cf936da98aecf0aec95c4c50 libyaml-node-id-hardening.patch seems to have been done differently upstream in b77d42277c32b58a114a0fa0968038a4b0ab24f4 libyaml-indent-column-overflow-v2.patch was done differently upstream in f859ed1eb757a3562b98a28a8ce69274bfd4b3f2 and af3599437a87162554787c52d8b16eab553f537b |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 12.04 | noarch | libyaml | < 0.1.4-2ubuntu0.12.04.1 | UNKNOWN |
ubuntu | 12.10 | noarch | libyaml | < 0.1.4-2ubuntu0.12.10.1 | UNKNOWN |
ubuntu | 13.10 | noarch | libyaml | < 0.1.4-2ubuntu0.13.10.1 | UNKNOWN |
ubuntu | 12.04 | noarch | libyaml-libyaml-perl | < 0.38-2ubuntu0.1 | UNKNOWN |
ubuntu | 12.10 | noarch | libyaml-libyaml-perl | < 0.38-3ubuntu0.12.10.1 | UNKNOWN |
ubuntu | 13.10 | noarch | libyaml-libyaml-perl | < 0.38-3ubuntu0.13.10.1 | UNKNOWN |