- Issued:
- 2012-06-20
- Updated:
- 2012-06-20
RHBA-2012:0749 - byacc bug fix update
Synopsis
byacc bug fix update
Type/Severity
Bug Fix Advisory (none)
Topic
An updated byacc package that fixes one bug is now available for Red Hat Enterprise Linux 6.
Description
Berkeley Yacc (byacc) is a public domain look-ahead left-to-right (LALR) parser generator used by many programs during their build process.
This updated byacc package includes a fix for the following bug:
- Byacc's maximum stack depth was reduced from 10000 to 500 between byacc releases. If deep enough else-if structures were present in source code being compiled with byacc, this could lead to out-of-memory conditions, resulting in YACC Stack Overflow and build failure. This updated release restores the maximum stack depth to its original value, 10000. Note: the underlying LR algorithm still imposes a hard limit on the number of parsable else-if statements. Restoring the maximum stack depth to its original value means source code with deep else-if structures that previously compiled against byacc will again do so. (BZ#743343)
All byacc users should upgrade to this updated package, which fixes this bug.
Solution
Before applying this update, make sure all previously-released errata relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for Scientific Computing | 6 | x86_64 |
| Red Hat Enterprise Linux for Power, big endian | 6 | ppc64 |
| Red Hat Enterprise Linux for IBM z Systems | 6 | s390x |
| Red Hat Enterprise Linux Workstation | 6 | x86_64 |
| Red Hat Enterprise Linux Workstation | 6 | i386 |
| Red Hat Enterprise Linux Server | 6 | x86_64 |
| Red Hat Enterprise Linux Server | 6 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 6 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Desktop | 6 | x86_64 |
| Red Hat Enterprise Linux Desktop | 6 | i386 |
Updated Packages
- byacc-1.9.20070509-7.el6.src.rpm
- byacc-1.9.20070509-7.el6.i686.rpm
- byacc-debuginfo-1.9.20070509-7.el6.i686.rpm
- byacc-1.9.20070509-7.el6.x86_64.rpm
- byacc-debuginfo-1.9.20070509-7.el6.s390x.rpm
- byacc-1.9.20070509-7.el6.ppc64.rpm
- byacc-debuginfo-1.9.20070509-7.el6.ppc64.rpm
- byacc-debuginfo-1.9.20070509-7.el6.x86_64.rpm
- byacc-1.9.20070509-7.el6.s390x.rpm
Fixes
CVEs
(none)
References
(none)
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.