Out-of-bounds read in libtomcrypt - CVE-2019-17362
Published: November 10, 2019
Vulnerability identifier: #VU22616
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-17362
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) atttack.
The vulnerability exists due to a boundary condition within the der_decode_utf8_string() function in der_decode_utf8_string.c file in LibTomCrypt. A remote attacker can pass to the application specially crafted DER-encoded data, trigger out-of-bounds read error and cause application crash.
Affected software
libtomcrypt
Opensuse
openEuler
Fedora
perl-CryptX
libtomcrypt
libtomcrypt-debuginfo
libtomcrypt-debugsource
libtomcrypt-devel
Opensuse
openEuler
Fedora
perl-CryptX
libtomcrypt
libtomcrypt-debuginfo
libtomcrypt-debugsource
libtomcrypt-devel
How to mitigate CVE-2019-17362
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
perl-CryptX - addressed in versions 0.080-1.fc37, 0.080-1.fc38, 0.080-1.fc39
libtomcrypt - update to 1.18.2-4
libtomcrypt-debuginfo - update to 1.18.2-4
libtomcrypt-debugsource - update to 1.18.2-4
libtomcrypt-devel - update to 1.18.2-4
libtomcrypt - update to 1.18.2-4
libtomcrypt-debuginfo - update to 1.18.2-4
libtomcrypt-debugsource - update to 1.18.2-4
libtomcrypt-devel - update to 1.18.2-4