CVE-2018-10811

strongSwan 5.6.0 and older allows Remote Denial of Service because of Missing Initialization of a Variable.

strongSwan 5.6.0 and older allows Remote Denial of Service because of Missing Initialization of a Variable.

This update for strongswan fixes the following issues:

Security issues fixed:

• CVE-2018-5388: Fixed a buffer underflow which may allow to a remote attacker with local user credentials to resource exhaustion and denial of service while reading from the socket (bsc#1094462).
• CVE-2018-10811: Fixed a denial of service during the IKEv2 key derivation if the openssl plugin is used in FIPS mode and HMAC-MD5 is negotiated as PRF (bsc#1093536).
• CVE-2018-16151,CVE-2018-16152: Fixed multiple flaws in the gmp plugin which might lead to authorization bypass (bsc#1107874).
• CVE-2018-17540: Fixed an improper input validation in gmp plugin (bsc#1109845).

This update was imported from the SUSE:SLE-15:Update update project.

This update for strongswan fixes the following issues:

Security issues fixed:

• CVE-2018-5388: Fixed a buffer underflow which may allow to a remote attacker with local user credentials to resource exhaustion and denial of service while reading from the socket (bsc#1094462).
• CVE-2018-10811: Fixed a denial of service during the IKEv2 key derivation if the openssl plugin is used in FIPS mode and HMAC-MD5 is negotiated as PRF (bsc#1093536).
• CVE-2018-16151,CVE-2018-16152: Fixed multiple flaws in the gmp plugin which might lead to authorization bypass (bsc#1107874).
• CVE-2018-17540: Fixed an improper input validation in gmp plugin (bsc#1109845).

This update was imported from the SUSE:SLE-15:Update update project.

These are all security issues fixed in the strongswan-5.9.0-1.9 package on the GA media of openSUSE Tumbleweed.

This update for strongswan fixes the following issues:

Security issues fixed:

• CVE-2018-5388: Fixed a buffer underflow which may allow to a remote attacker with local user credentials to resource exhaustion and denial of service while reading from the socket (bsc#1094462).
• CVE-2018-10811: Fixed a denial of service during the IKEv2 key derivation if the openssl plugin is used in FIPS mode and HMAC-MD5 is negotiated as PRF (bsc#1093536).
• CVE-2018-16151,CVE-2018-16152: Fixed multiple flaws in the gmp plugin which might lead to authorization bypass (bsc#1107874).
• CVE-2018-17540: Fixed an improper input validation in gmp plugin (bsc#1109845).

This update for strongswan provides the following fixes:

Security issues fixed:

• CVE-2018-5388: Fixed a buffer underflow which may allow to a remote attacker with local user credentials to resource exhaustion and denial of service while reading from the socket (bsc#1094462).
• CVE-2018-10811: Fixed a denial of service during the IKEv2 key derivation if the openssl plugin is used in FIPS mode and HMAC-MD5 is negotiated as PRF (bsc#1093536).
• CVE-2018-16151,CVE-2018-16152: Fixed multiple flaws in the gmp plugin which might lead to authorization bypass (bsc#1107874).
• CVE-2018-17540: Fixed an improper input validation in gmp plugin (bsc#1109845).

Other issues addressed:

• Fixed some client fails when the scep server URL is used with HTTPS protocol (bsc#1071853).
• Reject Diffie-Hellman key exchanges using primes smaller than 1024 bit.
• Handle unexpected informational message from SonicWall. (bsc#1009254)

It was discovered that strongSwan incorrectly handled IKEv2 key derivation. A remote attacker could possibly use this issue to cause strongSwan to crash, resulting in a denial of service. (CVE-2018-10811)

Sze Yiu Chau discovered that strongSwan incorrectly handled parsing OIDs in the gmp plugin. A remote attacker could possibly use this issue to bypass authorization. (CVE-2018-16151)

Sze Yiu Chau discovered that strongSwan incorrectly handled certain parameters fields in the gmp plugin. A remote attacker could possibly use this issue to bypass authorization. (CVE-2018-16152)

It was discovered that strongSwan incorrectly handled the stroke plugin. A local administrator could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2018-5388)