CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
86.8%
Debian LTS Advisory DLA-2431-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
November 05, 2020 https://wiki.debian.org/LTS
Package : libonig
Version : 6.1.3-2+deb9u1
CVE ID : CVE-2019-13224 CVE-2019-16163 CVE-2019-19012
CVE-2019-19203 CVE-2019-19204 CVE-2019-19246
CVE-2020-26159
Debian Bug : 931878 939988 944959 945312 945313 946344 972113
Several vulnerabilities were discovered in the Oniguruma regular
expressions library, notably used in PHP mbstring.
CVE-2019-13224
A use-after-free in onig_new_deluxe() in regext.c allows
attackers to potentially cause information disclosure, denial of
service, or possibly code execution by providing a crafted regular
expression. The attacker provides a pair of a regex pattern and a
string, with a multi-byte encoding that gets handled by
onig_new_deluxe().
CVE-2019-16163
Oniguruma allows Stack Exhaustion in regcomp.c because of recursion
in regparse.c.
CVE-2019-19012
An integer overflow in the search_in_range function in regexec.c in
Onigurama leads to an out-of-bounds read, in which the offset of
this read is under the control of an attacker. (This only affects
the 32-bit compiled version). Remote attackers can cause a
denial-of-service or information disclosure, or possibly have
unspecified other impact, via a crafted regular expression.
CVE-2019-19203
An issue was discovered in Oniguruma. In the function
gb18030_mbc_enc_len in file gb18030.c, a UChar pointer is
dereferenced without checking if it passed the end of the matched
string. This leads to a heap-based buffer over-read.
CVE-2019-19204
An issue was discovered in Oniguruma. In the function
fetch_interval_quantifier (formerly known as fetch_range_quantifier)
in regparse.c, PFETCH is called without checking PEND. This leads to
a heap-based buffer over-read.
CVE-2019-19246
Oniguruma has a heap-based buffer over-read in str_lower_case_match
in regexec.c.
CVE-2020-26159
In Oniguruma an attacker able to supply a regular expression for
compilation may be able to overflow a buffer by one byte in
concat_opt_exact_str in src/regcomp.c
For Debian 9 stretch, these problems have been fixed in version
6.1.3-2+deb9u1.
We recommend that you upgrade your libonig packages.
For the detailed security status of libonig please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libonig
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 8 | amd64 | libonig2 | < 5.9.5-3.2+deb8u4 | libonig2_5.9.5-3.2+deb8u4_amd64.deb |
Debian | 8 | armhf | libonig2-dbg | < 5.9.5-3.2+deb8u4 | libonig2-dbg_5.9.5-3.2+deb8u4_armhf.deb |
Debian | 9 | i386 | libonig-dev | < 6.1.3-2+deb9u1 | libonig-dev_6.1.3-2+deb9u1_i386.deb |
Debian | 8 | i386 | libonig2-dbg | < 5.9.5-3.2+deb8u4 | libonig2-dbg_5.9.5-3.2+deb8u4_i386.deb |
Debian | 9 | arm64 | libonig4 | < 6.1.3-2+deb9u1 | libonig4_6.1.3-2+deb9u1_arm64.deb |
Debian | 9 | armel | libonig4 | < 6.1.3-2+deb9u1 | libonig4_6.1.3-2+deb9u1_armel.deb |
Debian | 9 | arm64 | libonig4-dbg | < 6.1.3-2+deb9u1 | libonig4-dbg_6.1.3-2+deb9u1_arm64.deb |
Debian | 9 | arm64 | libonig-dev | < 6.1.3-2+deb9u1 | libonig-dev_6.1.3-2+deb9u1_arm64.deb |
Debian | 8 | armel | libonig2 | < 5.9.5-3.2+deb8u4 | libonig2_5.9.5-3.2+deb8u4_armel.deb |
Debian | 9 | i386 | libonig4-dbg | < 6.1.3-2+deb9u1 | libonig4-dbg_6.1.3-2+deb9u1_i386.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
86.8%