CVE-2015-0235
HighSummary
CVE-2015-0235 involves a heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc in versions 2.2 and other 2.x versions before 2.18. This allows attackers to execute arbitrary code via the gethostbyname or gethostbyname2 functions.
Risk Assessment
Attackers can exploit this vulnerability to execute remote code, potentially taking control of the system. This poses a serious security threat to the organization.
Recommendation
It is recommended to update glibc to version 2.18 or later to mitigate this vulnerability. Additionally, conduct an audit of systems to identify potentially affected applications.
Other vulnerabilities in glibc
See all- CVE-2023-6779High
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This issue occurs when the syslog and vsyslog functions are called with a message larger than INT_MAX bytes, leading to an incorrect buffer size calculation and application crash.
- CVE-2015-5180High
The res_query function in libresolv in glibc before version 2.25 has a vulnerability that allows remote attackers to cause a denial of service through a NULL pointer dereference, leading to process crashes.
- CVE-2017-1000366High
glibc contains a vulnerability that allows specially crafted LD_LIBRARY_PATH values to manipulate the heap/stack, potentially resulting in arbitrary code execution. This affects glibc 2.25 and earlier.
- CVE-2015-5229High
The calloc function in the glibc package in Red Hat Enterprise Linux (RHEL) 6.7 and 7.2 does not properly initialize memory areas, which might allow context-dependent attackers to cause a denial of service (hang or crash) via unspecified vectors.
- CVE-2016-2856High
In glibc versions before 2.19-18+deb8u4 on Debian jessie and before 2.15-0ubuntu10.14 on Ubuntu 12.04 LTS, 2.19-0ubuntu6.8 on Ubuntu 14.04 LTS, 2.21-0ubuntu4.2 on Ubuntu 15.10, and 2.23-0ubuntu1 on Ubuntu 16.04 LTS and 16.10, there is a lack of namespace check associated with file-descriptor passing. This allows local users to capture keystrokes and spoof data, potentially gaining privileges.
- CVE-2014-4043High
The posix_spawn_file_actions_addopen function in glibc before 2.20 does not copy its path argument in accordance with the POSIX specification, allowing context-dependent attackers to trigger use-after-free vulnerabilities.
- CVE-2023-4813Medium
A flaw in glibc may cause the gaih_inet function to use freed memory in uncommon situations, leading to an application crash. This issue is only exploitable when getaddrinfo is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=.
- CVE-2026-19499Medium
A flaw was found in glibc. The strfmon and strfmon_l functions are vulnerable to a buffer overflow when processing right-justified width padding. This occurs because an incorrect length is used for an internal memory operation, causing data to be written beyond its intended buffer.
- CVE-2020-1751High
An out-of-bounds write vulnerability was found in glibc before version 2.31 when handling signal trampolines on PowerPC. The backtrace function did not properly check array bounds when storing the frame address, leading to denial of service or potential code execution.
- CVE-2024-33600Medium
In glibc 2.15, a bug was introduced in the nscd daemon that causes a null pointer dereference when a not-found netgroup response is not added to the cache. This leads to a crash of nscd.
Original NVD description (English source)
Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-dependent attackers to execute arbitrary code via vectors related to the (1) gethostbyname or (2) gethostbyname2 function, aka "GHOST."