CVE-2018-2703
published 2018-01-18CVE-2018-2703: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges). Supported versions that are affected are 5.6.38 and…
PriorityP434medium6.5CVSS 3.0
AVNACLPRLUINSUCNINAH
EPSS
3.18%
86.7th percentile
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges). Supported versions that are affected are 5.6.38 and prior and 5.7.20 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| oracle | mysql | 5.6.0 – 5.6.38 | — |
| oracle | mysql | 5.7.0 – 5.7.20 | — |
| oracle_corporation | mysql_server | — | — |
| oracle_corporation | mysql_server | — | — |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.06.8MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:C
osv6.5MEDIUM
vendor_redhat6.5MEDIUM
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GHSA
GHSA-p6q6-vwfm-5fm9: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges)
ghsa_unreviewed·2022-05-14
CVE-2018-2703 [MEDIUM] GHSA-p6q6-vwfm-5fm9: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges)
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges). Supported versions that are affected are 5.6.38 and prior and 5.7.20 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
OSV
CVE-2018-2703: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges)
osv·2018-01-17·CVSS 6.5
CVE-2018-2703 [MEDIUM] CVE-2018-2703: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges)
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges). Supported versions that are affected are 5.6.38 and prior and 5.7.20 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Ubuntu
MySQL vulnerabilities
vendor_ubuntu·2018-01-22
CVE-2018-2562 MySQL vulnerabilities
Title: MySQL vulnerabilities
Summary: Several security issues were fixed in MySQL.
Multiple security issues were discovered in MySQL and this update includes
new upstream MySQL versions to fix these issues.
MySQL has been updated to 5.5.59 in Ubuntu 14.04 LTS. Ubuntu 16.04 LTS,
and Ubuntu 17.10 have been updated to MySQL 5.7.21.
In addition to security fixes, the updated packages contain bug fixes,
new features, and possibly incompatible changes.
Please see the following for more information:
http://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-59.html
http://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-21.html
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
mysql: sha256_password authentication DoS via hash with large rounds value
vendor_redhat·2018-01-16·CVSS 6.5
CVE-2018-2703 [MEDIUM] CWE-770 mysql: sha256_password authentication DoS via hash with large rounds value
mysql: sha256_password authentication DoS via hash with large rounds value
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges). Supported versions that are affected are 5.6.38 and prior and 5.7.20 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Package: mysql55-mysql (Red Hat Enterprise Linux 5) - Not affected
Package: mysql (Red Hat Enterprise Linux 6) - Not affected
Package:
No detection rules found.
No public exploits indexed.
HackerOne
[CVE-2018-6913] heap-buffer-overflow in S_pack_rec
hackerone·2018-10-31·CVSS 9.8
CVE-2018-6913 [CRITICAL] [CVE-2018-6913] heap-buffer-overflow in S_pack_rec
[CVE-2018-6913] heap-buffer-overflow in S_pack_rec
pack() may cause a heap buffer write overflow with a large item count.
* Reported to the [Perl security mailing list](https://rt.perl.org/Public/Bug/Display.html?id=131844) on 5 Aug 2017.
* Confirmed as a security flaw by TonyC on 30 Jan 2018
* CVE-2018-6913 assigned to this flaw on 11 Feb 2018
* [Public security advisory](https://github.com/Perl/perl5/blob/blead/pod/perl5262delta.pod) released on 14 April 2018
```
==2895==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb610081c at pc 0x08a72387 bp 0xbfea6038 sp 0xbfea602c
WRITE of size 4 at 0xb610081c thread T0
#0 0x8a72386 in S_pack_rec /root/karas/perl5-blead/pp_pack.c:2703:17
#1 0x8a42706 in Perl_packlist /root/karas/perl5-blead/pp_pack.c:1980:11
#2 0x8a73626 in Perl_pp_p
Bugzilla
CVE-2018-2565 CVE-2018-2573 CVE-2018-2576 CVE-2018-2583 CVE-2018-2586 CVE-2018-2590 CVE-2018-2600 CVE-2018-2612 CVE-2018-2622 CVE-2018-2640 CVE-2018-2645 CVE-2018-2646 CVE-2018-2647 CVE-2018-2665 ...
bugzilla·2018-01-17·CVSS 4.9
CVE-2018-2565 [MEDIUM] CVE-2018-2565 CVE-2018-2573 CVE-2018-2576 CVE-2018-2583 CVE-2018-2586 CVE-2018-2590 CVE-2018-2600 CVE-2018-2612 CVE-2018-2622 CVE-2018-2640 CVE-2018-2645 CVE-2018-2646 CVE-2018-2647 CVE-2018-2665 ...
CVE-2018-2565 CVE-2018-2573 CVE-2018-2576 CVE-2018-2583 CVE-2018-2586 CVE-2018-2590 CVE-2018-2600 CVE-2018-2612 CVE-2018-2622 CVE-2018-2640 CVE-2018-2645 CVE-2018-2646 CVE-2018-2647 CVE-2018-2665 ... community-mysql: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-
Bugzilla
CVE-2018-2703 mysql: sha256_password authentication DoS via hash with large rounds value
bugzilla·2018-01-13·CVSS 6.5
CVE-2018-2703 [MEDIUM] CVE-2018-2703 mysql: sha256_password authentication DoS via hash with large rounds value
CVE-2018-2703 mysql: sha256_password authentication DoS via hash with large rounds value
The MySQL's sha256_password authentication plugin uses SHA256 crypt password hashing algorithm as defined in:
https://www.akkadia.org/drepper/SHA-crypt.txt
to hash user passwords for storing. This algorithm makes it possible to adjust how expensive it is to compute password hash by adjusting the number of "rounds" of hashing. The number of rounds is stored as part of a password hash. The algorithm specification also defines the minimum and maximum number of rounds that can be used. It was previously identified that the maximum number is rather high and causes hash computation to take excessive amount of time:
https://sourceware.org/bugzilla/show_bug.cgi?id=20616
However, this problem is only relev
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlhttp://www.securityfocus.com/bid/102704http://www.securitytracker.com/id/1040216https://access.redhat.com/errata/RHSA-2018:0586https://access.redhat.com/errata/RHSA-2018:0587https://security.netapp.com/advisory/ntap-20180117-0002/https://usn.ubuntu.com/3537-1/http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlhttp://www.securityfocus.com/bid/102704http://www.securitytracker.com/id/1040216https://access.redhat.com/errata/RHSA-2018:0586https://access.redhat.com/errata/RHSA-2018:0587https://security.netapp.com/advisory/ntap-20180117-0002/https://usn.ubuntu.com/3537-1/
2018-01-18
Published