SB2016022212 - Buffer overflow in krb5 (Alpine package)
Published: February 22, 2016
Security Bulletin ID
SB2016022212
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2015-8629)
The vulnerability allows a remote authenticated user to gain access to sensitive information.
The xdr_nullstring function in lib/kadm5/kadm_rpc_xdr.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 does not verify whether ' ' characters exist as expected, which allows remote authenticated users to obtain sensitive information or cause a denial of service (out-of-bounds read) via a crafted string.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=5dfc3609c83443f92ad4f2deb320e2e4e8a711bd
- https://git.alpinelinux.org/aports/commit/?id=4f2cf5fbbec2789b0e103ff0eb4104ea870841b1
- https://git.alpinelinux.org/aports/commit/?id=5e3bdd5e3d1bbd6ec59d091da48d09abd09989bc
- https://git.alpinelinux.org/aports/commit/?id=9fae6fa0a6bda24c7af622a7e5b5f3bed7e8207b
- https://git.alpinelinux.org/aports/commit/?id=eab4343d4108ba85530b8141ae3fe0a2242cd72b